Promoting New CD's.

Rod Stewart joins Jimmy Fallon to do one of Fallon's songs.

Rod Stewart stopped by NBC's Late Night With Jimmy Fallon this week to promote his autobiography, Rod, and new album, Merry Christmas, Baby, in stores Tuesday. Being the gentleman British singer that he is, he joined Fallon on a song Fallon wrote called "Dancing With You All Night Long by Rod Stewart." With Fallon on acoustic guitars and backed by the Late Night house band, The Roots, Stewart provided the background vocals.