She once went to bed with a Harry Stiles cardboard cut-out. You can see it right here.
Her second stint at hosting SNL, particularly "We Did Stop" which parodies the GOP and the government shutdown.
A half-hour after the 2014 Grammys, upon which many Twitter accounts live-tweeting the show on the East Coast lamented the absence of Miley at the ceremonies to liven up events to the point that #WheresMiley trended worldwide, (she had been snubbed that year, but performed at the previous night's Grammys salute to Clive Davis) the star posted this on her own Twitter account.
Her onstage introduction to Breakout album track "Full Circle" during her performance at Rock In Rio in 2010 included the very deadpan-snarked side comment, "This song is about a Jonas brother. Surprise, surprise."