Justin Bieber closed the American Music Awards [1] on Sunday night in LA, and let's just say things got a little wet. The pop star pulled a page from the performance playbook when he incorporated rain, echoing iconic onstage moments from Britney Spears [2], Rihanna [3], and Taylor Swift [4]. The flash flood is really just the cap on what was an exciting weekend for Justin. On Friday, he stepped out with Selena Gomez [5] and was even spotted serenading her in a Beverly Hills bar [6]. The two both showed up on Sunday's red carpet [7], albeit separately, and Selena had a sultry performance of her own [8]. Keep reading for more pictures of Justin's very wet moment in the spotlight.