Music Help - Who Sings These Songs?

`Girl` :
http://s30.yousendit.com/d.aspx?id=3HRGGOXD02ZM22RNIQS3B0CIO4

`Holla` :
http://s30.yousendit.com/d.aspx?id=3M9HC303TPM551H2F6TVSWF1R1

`Crossroads` :
http://s30.yousendit.com/d.aspx?id=0YJ920UZBE4Y926RBHGX3QXASW


They are some random MP3s I have. I think they're all the same singer. But who? I have no clue where I got them from. :lol:

well i looked up the lyrics to the last one and it's Mis-Teeq

http://groups.msn.com/misteeqheaven/lyrics.msnw

:yeah: Thanks!!!