Songstress Ariana Grande made her appearance on 'RuPaul's Drag Race' last night (April 6) and judged the competing drag queens, whose task was to star in a mystery behind-the-scenes reenactment series.

Addressing RuPaul on the panel, the 'Love Me Harder' beauty can be heard saying: "This is the best day of my life... I'm not lying. Thank you!"

Grande tweeted about being involved with the judging process yesterday and wrote: "@rupaul I love u! Tonight's the night after what feels like 89 years of waiting. Again so honoured. Thank u/I love u!!"

Back in February, the show's panelist Michelle Visage praised Grande and admitted that she was really excited to have her on the programme: "Ariana Grande I loved on 'Victorious' so I would watch her show constantly on Nickelodeon. She was adorable."

Grande, meanwhile, has just been nominated for the Top Female and Top Artist prizes at this year's Billboard Music Awards, which will be held on May 17.

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Watch a trailer for last night's episode here: