Van Halen Performs 'Panama' at the 2015 Billboard Music Awards: Watch

Michael Buckner/BMA2015/Getty Images for dcp
David Lee Roth of Van Halen attends the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.  

Van Halen made a rare live TV appearance at the 2015 Billboard Music Awards on Sunday night in Las Vegas. 

Van Halen's 5 Best Music Videos

The hard rock legends took the stage after Taylor Swift gave the world premiere of her "Bad Blood" video (featuring everyone ever) to deliver "Panama," one of the highlights from 1984 and one of their most enduring hits. 

2015 Billboard Music Awards

It's hard to say what was better: David Lee Roth's Newsies cap or his slithery onstage theatrics. Watch the remarkable performance below. 

Billboard Music Awards 2015