Singer-songwriter and actress Jenny Lewis took to the 'Conan' stage last night for a lively version of her new single, 'Just One of the Guys.' Wearing her fancy rainbow jacket and strumming her even fancier rainbow guitar, Lewis delivered a fine reading of the song from her new album, 'The Voyager,' while her band -- all dressed in white -- laid out a sweet country-esque groove.

That new signature rainbow motif could also be found on the front of the keyboard and the bass drum head, not to mention the label on the bottles of her new wine (which she shared with Conan). The new single -- and album -- mark Lewis' first solo offerings in over six years and her first since the break-up of Rilo Keily, the band she fronted, in 2011.

Lewis is wrapping up a short U.S. tour with Beck before heading off to the U.K. for a round of live dates. She will return to stateside stages starting in October. Get all the details here.