Van Halen was forced to step away from Tremonti because he's already committed to tour with his dad Eddie's rock supergroup Van Halen.

Announcing the news of his temporary hiatus last week (ends27Mar15), Van Halen said, "I am still part of Tremonti and very excited for the release of (new album) Cauterize, but unfortunately am unable to participate in the upcoming tour dates, both in the States and overseas due to my prior commitment with Van Halen."