Complex sentence: In 2010, Kerzner and Collins decided to form a band; in 2012, they announced the band, Sound of Contact, with Collins on lead vocals and drums, Kerzner on keyboard, and colleagues Matt Dorsey and Kelly Nordstrom on bass and guitar.
Split into simpler sentences: In 2010, Kerzner and Collins decided to form a band. In 2012, they announced the band as Sound of Contact, with Collins on lead vocals and drums, Kerzner on keyboard, and colleagues Matt Dorsey and Kelly Nordstrom on bass and guitar.