I'm searching desperately for the name of the song they played at the end of an episode of Making the Band 3. It was the episode where the girls had to run 6 miles through the Central Park. After the run they had to perform their dance routine and three girls where eliminatet (Malika and two other girls). It was a rock or alternative song wich was played in the last three minutes of the episode and the singer sang "so long and goodbye"...

Please can somebody help me and tell me what the name of the song is?

Thanks in advance!!!