Way back in 2015, “uptown girls” Jennifer Lawrence and Amy Schumer danced on Billy Joel’s piano at a Wrigley Field concert. Lawrence called the crazy dance atop the Piano Man’s piano the “best thing that happened” that year, while Schumerjoked to E! News, “Honestly, Billy Joel, I’ve been a groupie for years, just touring with him, riding the van, putting out.” But we’ve been waiting for Joel’s reaction to the performance .