Not Letting Go Tinie Tempah feat. Jess Glynne Download 'Not Letting Go' on iTunes
Jessie J is getting ready for her big US TV debut.
The singer is set to play 'Saturday Night Live' at the weekend.
She Tweeted 'Omg Saturday night live rehearsals were s s s s sick!!! The band are incredible!!!'
Jessie said: 'The way I'm taking the British flag on to 'Saturday Night Live' doesn't happen very often.'