"Hello everyone, We wanted to let you know that I have chosen to leave Yellowcard and pursue other endeavors. It has been an honor creating music together and I want to wish them the very best in everything they put their hands to. its been a blessing to have been able to travel the world and perform music. I would like to thank everyone who has supported us through all these years and will continue to support yellowcard. Thanks, Peter"

According to Wikipedia this isn't the first time that Pete has decided to pursue other endeavors. - more on this story