Complex sentence: The band had gone through 11 previous drummers before finding Mike Loggins, and in 2004, the Lashes made their debut with the Stupid Stupid EP on Berkeley, CA based Lookout !
Split into simpler sentences: The band had gone through 11 previous drummers before finding Mike Loggins. Then in 2004, the Lashes made their debut with the Stupid Stupid EP on Berkeley, CA based Lookout!