Drummer Mike Portnoy (Adrenaline Mob, Flying Colors, The Winery Dogs, Dream Theater, Avenged Sevenfold) has released the following statement:

"It saddens me to announce that the four upcoming shows in Latin America this month supporting Halestorm will be my last with Adrenaline Mob.

"Unfortunately, I have scheduling conflicts that prevent me from being able to fully commit to the band's future activities at the moment.

"As I cannot be in two places at the same time, I don't want to hold them back and have to wait for my schedule to re-open up to resume activity.

"I'm very proud of what we started together and the music we made over the past two years and I wish the guys all the best in the future."

Adrenaline Mob features in its ranks frontman Russell Allen, guitar virtuoso Mike Orlando (Sonic Stomp) and Disturbed bassist John Moyer

Adrenaline Mob released "Covertá", an eight-track Ep featuring cover versions of some of the group's favorite songs, on March 12. Longtime fans of Portnoy are aware of the multiple cover CDs he has released with Dream Theater and with Neal Morse. "Covertá" is the first Cd of covers recorded by Adrenaline Mob.

Portnoy, who co-founded Dream Theater more than 20 years ago, abruptly quit the band in September 2010 while on tour with Avenged Sevenfold. He has since been replaced by Mike Mangini (Annihilator, Extreme, James Labrie, Steve Vai).

Portnoy played on Avenged Sevenfold's latest album, "Nightmare", following the death of that band's drummer, Jimmy "The Rev" Sullivan, and toured with them for the entire second half of 2010.