Ashley Tisdale and Aly Michalka are out of work.
"Keeping your fingers crossed worked!" One Tree Hill's Sophia Bush, 28, told her Twitter followers. "Season 9 is officially picked up for 13 episodes!"
Added Austin Nichols, 31: "We just got picked up for 13 episodes. One Tree Hill cannot be killed thanks to the fans."
In April, The CW announced Gossip Girl, 90210, The Vampire Diaries, Supernatural and America's Next Top Model would be returning next fall.