Played straight for the Littles with Matey Anchors.
The Main Characters Do Everything: It's either Peanut (Festival of Sugary Sweets, Super Silly Party, Silly Funhouse in the Carnival of Friends DS Game) or Jewel (Button Harvest, Princess Parade, the Buttonettes, Beautification Committee in We're Lalaloopsy) who are behind the major events and gigs in Lalaloopsy Land. In "Welcome to LALA Prep School", Peanut is shown to be the most-active member in the Overly-Dramatic Club and Jewel becomes Student Council President. Even before the formal election in "Misty's Magic Hero", Jewel is shown to be the leader of the Princess Club and is the one who officially declares all three members as president.
You Gotta Have Blue Hair: Most of them have unnaturally colored hair, but only the females have these. The males are drawn with normal hair colors, however.