Finding somebody on Twitter?

[Tommy]

I went to a concert last night and after the show, hanging around outside, this girl came up to my group and started talking to us. I never got her name. She was constantly tweeting at mattandkim (Matt & Kim concert, it was amazing!) and about waiting outside to meet them and hanging around random people (us), Is there a way to look up tweets that mention something, such as mattandkim, to find the ones she was writing so i can find her?

[greenday41]

Try the hashtag, #mattandkim. Good luck.