Hollywood's best and brightest gathered in Los Angeles last night (Sept. 21) to celebrate the year's finest achievements in television at the 2013 Emmy Awards -- and there was even a little room for some classic rock during the top-rated ceremony too.

Elton John took the stage to pay tribute to Liberace, the iconic pianist whose life and times were commemorated in the critically lauded HBO movie, 'Behind the Candelabra,' starring Michael Douglas and Matt Damon. Liberace, who died of an AIDS-related illness in 1987, sold millions of records during his lifetime, in addition to hosting a top-rated television show and even breaking into feature films. But John didn't dip into his honoree's repertoire for his performance; instead, he opted to perform 'Home Again,' one of the songs from his new album, 'The Diving Board.' You can watch the video above.

While it might seem like a strange choice, John told the crowd that 'Home Again' reminded him of Liberace because Liberace always liked to be at home -- and even if that isn't true, the elder pianist was an inveterate showman with a knack for making himself the center of attention, so he probably would have appreciated John's ability to keep the spotlight on himself even while paying tribute to someone else's work.

Elsewhere during the ceremony, country star Carrie Underwood showed up to give the Beatles a little love with a performance of their classic 'Yesterday,' as part of a look back at the way television has helped frame viewers' experiences of major cultural milestones over the years. You can see her performance below.

She even met up with John while she was there -- as she told her Twitter followers, "The amazing @eltonjohndotcom just came to my dressing room to say hi ... we talked for a bit. I think I can safely say we're best friends now!"

Watch Carrie Underwood Perform 'Yesterday'