it's always a good idea to be ready for anything. From surprise guests to brand-new songs, celebrities always seem to have a few tricks up their sleeves at this music festival. After all, it was just one week ago thatLady Gagatreated her Little Monsters toa fresh singlewithin her set, making tons of dreams come true.Last night, it wasTroye Sivan Danielle Panabaker Is Engaged To Longtime Boyfriend Hayes RobbinsCheck this out:Bella Hadidhas dismissedreportsregarding a reunion withThe WeekndduringCoachella Of course, eagle-eyed fans definitely knew that this collab was in the works, considering that Troye recently posted anInstagram story “The men, women, and children aboard the Aquarius have risked their lives on perilous seas to escape horrific abuses in Libya only to find themselves caught in an unconscionable political standoff between two European states."