Clay Aiken is Parker Proud

Clay Aiken and his son Parker Aiken, 9 months, visit an office building on Wednesday (May 13) in Beverly Hills, Calif.

The 30-year-old former American Idol contestant will be making his cameo on 30 Rock‘s season finale, where Jack (Alec Baldwin) builds a relationship with his estranged father. The episode (“Kidney Now!”) airs TOMORROW, May 14 @ 9:30PM ET/PT on NBC. Also making guest-starring appearances: Alan Alda, Sheryl Crow, Mary J. Blige, Adam Levine of Maroon 5 and Elvis Costello. Watch the preview below!

10+ pictures inside of Parker proud Clay Aiken…