THIS IS FRUSTRATING!!

GRRR! Ive been improving my vocals all summer (thats not the frustrating part) So ive been singing gospels that ive learned that are meant to be sung a cappella (no instrumentls just saprano alto tenor and bass vocals) And I never learned the name of the singers :( I really want to go buy a cd by the ones that i first heard of :o. The first song I heard that was sung a cappella was called running just to catch myself but it was like a school re-endishen by an a cappella group that visited WCS. Its also heard on the 6th grade (2007) graduation video at the end. I happend to suggest that song to Mrs.Tinkler and she put it in there :D I was so happy when I heard it. But I'm so frustrated because I can't figure out who they are. I'll i've got are the lyrics that I learned and the music from the graduation dvd. I wish I had more to go on. I really could use some help figuring out who they are because I really love their music. and it could help improve my vocals a lot. The best way that i improve my singing is by singing hymns and gospels that ive learned and evaluate what Ive done like my posture, my breathing, my vowel sounds, my pitch ect. all I've got for now is the songs that Ive grown up with. I just wish I knew who they were ._.