RnB superstar Jordin Sparks has begged Guy Sebastian to join her on stage when she comes to Australia later this year.

The energy drink fan reportedly dropped the equivalent of over $600 on the tattoo, which features the barcode being chomped by a worm.

With a record 15-minute standing ovation at its world premiere, Joachim Trier's Sentimental Value is winning rave reviews and generating the biggest buzz from the Cannes Film Festival.