What is David Letterman doing these days, other than learning how to a operate a telephone again? Apparently doing the odd favor for old friends and eating cereal. At least that’s what we gather from Darlene Love’s “Forbidden Nights” music video, during which the retired Late Show host makes a brief cameo towards the end of the song.

The recent retiree makes the guest appearance for good reason—Love had stopped by Letterman’s long-running CBS series almost each holiday season since 1986 to sing “Christmas (Baby Please Come Home)” in one of the Late Show with David Letterman’s most beloved traditions.

Letterman is joined in the music video by a slew of special guests including his former sidekick Paul Shaffer plus Bill Murray, Joan Jett, Bruce Springsteen, Elvis Costello, and Steven Van Zandt, all of whom clearly adore Love enough to pop in for what is presumably an unpaid music video appearance.

“Forbidden Nights” appears on Love’s new album, Introducing Darlene Love, which arrives on September 18.

Related: An Oral History of Darlene Love’s Legendary Letterman Christmas Performances