"When they asked me to be a part of it I was thrilled," said Jonas during "Extra's" behind-the-scenes interview. "It's because you got to be my son," Bertinelli teased.
Was the TV mom able to keep the news of her TV son from her family and friends? "I actually didn't tell anybody because I didn't want everyone going, 'Can I come on the show?'" Bertinelli explained, adding, "Everywhere you go you hear about the Jonas Brothers!"