There are three artist with this name :

1) NASHA is a popular poprock singer, actress and topmodel from Prague, Czech Republic.

She´s the winner of a first series of television competition «Česko hledá Topmodelku» and the main star of the successful musical TV series for teenagers «Střední Hotelová». Now, she prepare her debut album «Tatínku, pojď a poslechni si mě» whit hit single «Lízátko»

2) Nasha is a collective of drum and bass artists from the UK. More info at http://www.nasha.co.uk

3) Nasha is a Danish dubstep‑artist that has released the EP «Manners & Respect». See http://www.myspace.com/nashamix for more information.