N o w - H o l l y w o o d . b l o g s p o t .c o m

Justin Timberlake brought sexy back to NBC's Saturday Night Live this weekend, appearing in the popular Weekend Update segment and a skit with musical guest Beyonce.

For Timberlake's Weekend Update appearance opposite anchor Seth Meyers -- in which the singer revealed his idea of a perfect episode, hosted by himself -- he launched into a few bars of "SexyBack," and told viewers he'd occupy his time during commercial breaks by "texting Jessica," referring to girlfriend Jessica Biel.

Later, Timberlake donned a leotard and black pumps to dance backup for musical guest Beyonce's video "Single Ladies." (Watch a clip above)

However, Timberlake's dancing did little to impress Beyonce in the skit, which featured SNL host Paul Rudd as the video's director. "What are you doing?" she shrieked as he got a little too close for comfort. "We're grinding," one of Timberlake's fellow dancers said. "I thought it was obvious!"