According to The Pulse Of Radio, HINDER apparently wanted "American Idol" season seven winner David Cook to fill in temporarily for frontman Austin Winkler, who recently left the group's current tour for "personal reasons" — although it is now confirmed that Winkler has entered rehab. HINDER manager Kevin "Chief" Zaruk told The Hollywood Reporter, "David Cook was at the top of our list." He added that season 10's James Durbin was also in the running, saying, "We would've loved to have either, but the timing didn't work out."