ET has confirmed that Valli is working on the upcoming streaming event performance.
With so many artists’ stories and music being adapted for the stage, ET finds out what goes into making a hit on Broadway.
The 31-year-old dancer tells ET he's been 'crazy' busy with music, touring and Broadway over the past year.
The former 'Dancing With the Stars' pro is writing new music with his wife for their duo, Alexander Jean.
The newlyweds didn't hold anything back while chatting with ET during their first interview since tying the knot.
The 'Jersey Boys' star also tells ET he's planning his honeymoon with fiancee BC Jean.
The close pals shared a hug after Mark sang during Derek's samba with Marilu Henner.
The former 'DWTS' pro came back on Monday, but not to dance.
The 'Dancing With the Stars' pro told ET "this is an amazing time right now in our lives."
The former 'DWTS' pro also dished on what best man Derek Hough has planned for the Bachelor party.
The 30-year-old dancer also opened up about possibly returning to 'Dancing With the Stars' -- as a judge!
The long-time 'DWTS' pro opened up to ET about the 'huge honor' of getting to play Frankie Valli on Broadway.
The 'DWTS' pro confirmed that he's starring in 'Jersey Boys,' which is why he won't be on 'DWTS' this season.
Mark Ballas has a pretty good reason for missing out on season 23 of 'DWTS.'
