Brian Austin Green on How Sharna Burgess Convinced Him to Do DWTS ( Exclusive)

ET spoke with Brian Austin Green about joining season 30 of Dancing With the Stars and how girlfriend and longtime pro, Sharna Burgess, talked him into it. The former Beverly Hills, 90210 star also shares if any of his former costars who have competed on the show gave him any tips. He also teases if Sharna will end up being his dance partner. Dancing With the Stars returns Monday, Sept. 20, on ABC.