History Trivia / TheFlash2014S3E17Duet

* ActorAllusion:
** One poster for the episode had the title "[[Recap/GleeS4E7DynamicDuets Dynamic Duet]]", one letter away from the title of the ''Series/{{Glee}}'' episode where Creator/MelissaBenoist dressed up as a superhero.
** Creator/DarrenCriss just wanting people to have a song and dance.
** And to ''Series/{{Glee}}''--the only musical numbers featuring Creator/MelissaBenoist (Kara), Creator/GrantGustin (Barry), and Criss (the Music Meister) were "Help!" and "All You Need is Love," similar to the group number ("Put a Little Love in Your Heart") in this episode.
** Creator/TomCavanagh doesn't get to [[TheCastShowoff flex his Broadway background]] in this episode, but it is given a nod when Barry says someone else on the team besides him has a great singing voice. HR assumes he's talking about him, but he's talking about Kara.

* CastingGag:
** Creator/DarrenCriss joins his fellow ''Series/{{Glee}}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister. Creator/VictorGarber also played the father of the show's BigGood.
** Creator/VictorGarber's real life homosexuality gets another nod, as the character modeled after Stein is gay.
** The choreography was done by ex-''Glee'' choreographer Zach Woodlee.
** "I'm Your Super Friend" was co-written by [[Creator/RachelBloom the star]] of ''Series/CrazyExGirlfriend''--another popular CW series.

* ActorSharedBackground: Prof. Stein's musical world doppelganger is gay, much like Creator/VictorGarber.

** Creator/DarrenCriss and Carlos Valdes both worked on Creator/TeamStarKid shows and both wrote the music for some of them.

** Tom Cavanagh doesn't get to [[TheCastShowoff flex his Broadway background]] in this episode, but it is given a nod when Barry says someone else on the team besides him has a great singing voice. HR assumes he's talking about him, but he's talking about Kara.

** Creator/DarrenCriss joins his fellow ''Series/{{Glee}}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister. Victor Garber also played the father of the show's BigGood.

* ActorSharedBackground: Prof. Stein's musical world doppelganger is gay, much like Victor Garber.
* TheCastShowoff: Creator/GrantGustin, Creator/JesseLMartin and Carlos Valdes, along with Series/{{Arrowverse}} guest stars Creator/MelissaBenoist, Creator/JohnBarrowman, Victor Garber and Jeremy Jordan, get to show off their musical theatre skills.

** Victor Garber's real life homosexuality gets another nod, as the character modeled after Stein is gay.

** "I'm Your Super Friend" was co-written by the star of ''Series/CrazyExGirlfriend''--another popular CW series.

** Darren Criss and Carlos Valdes both worked on Creator/TeamStarKid shows and both wrote the music for some of them.

** One poster for the episode had a title of "[[Recap/GleeS4E7DynamicDuets Dynamic Duet]]", one letter away from the title of the ''Series/{{Glee}}'' episode where Creator/MelissaBenoist dressed up as a superhero.

** And to ''Series/{{Glee}}'' -- the only musical numbers featuring all Creator/MelissaBenoist (Kara), Creator/GrantGustin (Barry), and Criss (the Music Meister) were "Help!" and "All You Need is Love", similar to the group number ("Put a Little Love in Your Heart") in this episode.

* ActorSharedBackground: Prof. Stein's musical world doppelganger is gay much like Victor Garber.
* TheCastShowoff: Creator/GrantGustin, Creator/JesseLMartin and Carlos Valdes, along with ''Series/{{Arrowverse}}'' guest stars Creator/MelissaBenoist, Creator/JohnBarrowman, Victor Garber and Jeremy Jordan, get to show off their musical theatre skills.

** The choreography was done by ex-Glee choreographer Zach Woodlee.
** "I'm Your Super Friend" was co-written by the star of ''Series/CrazyExGirlfriend'' - another popular CW series.
* IronyAsSheIsCast

** Creator/DarrenCriss, who plays the Music Meister, also has a musical theater background and also never got a solo, though he does take part in a group musical number on "Put a Little Love in Your Heart" and sings a couple of bars of it on his own at the end.

** As already mentioned above, the episode has a good chunk of ''Series/{{Glee}}'' alumns, plus the episode's choreography was done by that show's former choreographer.
** Darren Criss and Carlos Valdes both worked on TeamStarkid shows and both wrote the music for some of them.

* ActorAllusion: One poster for the episode had a title of "[[Recap/GleeS4E7DynamicDuets Dynamic Duet]]", one letter away from the title of the ''Series/{{Glee}}'' episode where Creator/MelissaBenoist dressed up as a superhero.

** "I'm Your Super Friend" was co-written by the star of ''CrazyExGirlfriend'' - another popular CW series.

* IWantYouToMeetAnOldFriendOfMine: As already mentioned above, the episode has a good chunk of ''Series/{{Glee}}'' alumns, plus the episode's choreography was done by that show's former choreographer.

* IWantYouToMeetAnOldFriendOfMine: As already mentioned above, the episode has a good chunk of ''Series/{{Glee}}'' alumns, plus the episode's choreography was done by that show's former choreographer.

* TheCastShowoff: Creator/GrantGustin, Creator/JesseLMartin and Carlos Valdes, along with ''Franchise/{{Arrowverse}}'' guest stars Creator/MelissaBenoist, Creator/JohnBarrowman, Victor Garber and Jeremy Jordan, get to show off their musical theatre skills.

** Meta: Creator/DarrenCriss just wanting people to have a song and dance.

* ActorAllusion: Besides the obvious casting, one poster for the episode had a title of "[[Recap/GleeS4E7DynamicDuets Dynamic Duet]]", one letter away from the title of the ''Series/{{Glee}}'' episode where Creator/MelissaBenoist dressed up as a superhero.

* IWantYouToMeetAnOldFriendOfMine: As already mentioned above, the episode has a good chunk of ''Series/{{Glee}}'' alumns, plus the episode's choreographer was done by that show's former choreographer.

** Creator/DarrenCriss, who plays the Music Meister, also has a musical theater background and also never got a solo.

* ActorAllusion: Besides the obvious casting, one poster for the episode had a title of "[[Recap/GleeS4E7DynamicDuets Dynamic Duet]]", one letter away from the title of the ''Series/{{Glee}}'' episode where Melissa Benoist dressed up as a superhero.

** Creator/DarrenCriss joins his fellow ''Series/{{Glee}}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister.

** The choreography was done by ex-Glee choreographer Zach Woodlee.

** Creator/DarrenCriss joins his fellow ''Series/{{Glee}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister.

** Creator/DarrenCriss joins his fellow "Glee" alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister.

** Victor Garber's real life homosexuality gets another nod, as the character modeled after Stein is gay.

** Creator/DarrenCriss joins his fellow ''Series/{{Glee}}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister.

* CastingGag: Creator/DarrenCriss joins his fellow ''Series/{{Glee}}'' alums Creator/GrantGustin and Creator/MelissaBenoist for this episode as the Music Meister.

* TheCastShowoff: Creator/GrantGustin, Jesse L. Martin and Carlos Valdes, along with ''Franchise/{{Arrowverse}}'' guest stars Creator/MelissaBenoist, John Barrowman, Victor Garber and Jeremy Jordan, get to show off their musical theatre skills.

* TheCastShowoff: Creator/GrantGustin, Jesse L. Martin and Carlos Valdes, along with ''Franchise/{{Arrowverse}}'' guest stars Creator/MelissaBenoist, John Barrowman, Victor Gerber and Jeremy Jordan, get to show off their musical theatre skills.

* TheCastShowoff: Creator/GrantGustin and Carlos Valdes, along with ''[[Series/Supergirl2015 Supergirl]]'' guest stars Creator/MelissaBenoist and Jeremy Jordan, get to show off their musical theatre skills.