Griff gave her debut US TV appearance this week with a dramatic performance of recent single ‘Black Hole’ on Late Night With Seth Meyers.You can watch the footage below, which saw the rising star perform with a live band on a stage covered in black water.The track, released in January, is the lead single from Griff’s newly announced debut mixtape ‘One Foot In Front Of The Other’, which will be released on June 11.Griff described ‘One Foot In Front Of The Other’ as “a collection of songs I’ve