'A Very Boy Band Holiday' premieres Monday, Dec. 6 at 8 p.m. on ABC.
The singer celebrated the milestone with his famous friends including Lisa Vanderpump and several of his fellow boy banders.
'The Bachelor' hunk talked to ET about battling nerves to make his singing debut on the band’s long-awaited new single, ‘Hello World.'
The singer’s fiancée dropped the video for her debut single, 'I See You,' which sweetly chronicles the couple's proposal and pregnancy.
O-Town singer Jacob Underwood's fiancee, Chandler Bay, has dropped the video for her debut single, 'I See You,' exclusively with ET.
The couple are proud new parents to a little girl, whose name has special meaning to the pair.
It was 'One More Night' to love New Kids on the Block on Saturday.
Exclusive Photos: It's the battle of the boy bands as the 'Dead 7' cast dishes on revenge killings, karaoke nights, gaming sessions and behind-the-scenes baby news!