Bassist Sean O'Donnell has left US pop rockers Yellowcard, he announced in a statement on the band's website:

"In April of 2010, the 5 of us met up in Los Angeles to play some music, hang out, and talk about the future of the band. I felt privileged to be invited to get to do so, and it was an amazing couple of days. Fast forward a year and a half and we've put out two full lengths, shot 6 music videos, and traveled to almost 30 countries. It's been an exhilarating time for all of us in the band and some of the most fun I've ever had in my music career. Which is why I'm sad today to let you all know that I am leaving Yellowcard.

This is not one of those ugly messy band member departures that seem to plague rock music. This is a personal decision, and it's mine. Simple as I can put it, playing in a band that is on a full time touring schedule demands a balancing act of work and family that I can no longer pull off and still remain happy. As you can imagine, this was not an easy decision to make, but usually the really important ones never are."