Season 7 of 'RuPaul's Drag Race' is due to kick off on Monday, March 2 in its usual time slot at 9 pm on LOGO TV and it was recently announced that Ariana Grande and Demi Lovato will star as guest judges on the show. 

Permanent panelist Michelle Visage, who recently appeared on 'Celebrity Big Brother', told MTV News that having both girls on the upcoming seventh series was an honour because she thinks they are 'amazing':

"Demi I met, dare I say begged, at New York Gay Pride and she was like, 'I'm a huge fan of the show and I would love to do it', so I just slipped her a cheque and made her do it... and she was amazing. I'm a huge Demi Lovato fan."

Visage added that she's equally impressed by 'Break Free' superstar Grande: "Ariana Grande I loved on 'Victorious' so I would watch her show constantly on Nickelodeon. She was adorable." Other guest judges will include songstress Jordin Sparks, Spice Girls star Mel B, and 'Grease' icon Olivia Newton-John. 

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Watch a trailer for the new series below: