Music
The former Malcolm in the Middle star is to act as the group's drummer.
"Between Frankie's incredible drumming skills and his passion for music in general, he adds a flavour to You Hang Up that could not blend better with the group," read a statement on their MySpace page.
"Even though You Hang Up has been in the making since 2007, things are just getting started for them so stay tuned," it added.
This is the 24-year-old's second career switch since quitting acting in 2008 to become a race car driver.
Related Stories
Singles Reviews
DJ Fresh ft. Dizzee Rascal: 'The Power' reviewThe DJ and rapper produce a Balearic Island summer blaster.
Music Interviews
David Guetta: My music isn't all the sameDigital Spy talks to the DJ ahead of his London shows this weekend.
The Sound
Playlist: Queen's Diamond Jubilee specialWe select our favourite Queen-related songs ahead of the Diamond Jubilee.
Album Reviews
Ladyhawke: 'Anxiety' reviewThe singer's ear for infectious pop remains stronger than ever on her second LP.
