In between seasons 2 & 3 of Miami Vice, Don Johnson decided to copy what Moonlighting's Bruce Willis was doing in his spare time, and hit the recording studio. Problem is, Johnson ended up a 1-hit wonder.
Johnson signed with Columbia, and released the CD, "Heartbeat", with the title track as the first single, bolstered by a searing solo from second generation guitarist Dweezil Zappa. The last time Johnson tried any singing, it was a duet with a Columbia labelmate, pop legend Barbra Streisand, about 2-3 years later. He wasn't too bad, to be honest, and "Heartbeat" didn't deserve to get dissed by VH1 on one of their silly talking head festivals that counted down silly little lists and got played to death.
To be fair, Vice co-star Philip Michael Thomas also moonlighted as a singer, signing with Atlantic, if memory serves. We'll put that in the playlist another time.