T In the Park 2014: Lily Allen 'Sad' She's Not Performing

Glastonbury — Lily Allen previously performed at the festival in 2009. AFP/Getty Images

Lily Allen has revealed that she is upset that she will not be performing at the 2014 T in the Park Festival this weekend.

Taking to Twitter, the singer, who made a sensational comeback earlier this year, admitted that it was always fun taking to the stage at the three-day event.

She also got nostalgic by posting her cringeworthy 2007 interview with Radio 1 DJs Zane Lowe and Lauren Laverne at T in the Park.

sad i'm not doing t in the park this weekend, always a lol. unless your @laurenlaverne or @zanelowe http://t.co/RzCg5VFhCD #memories
— Lily Allen (@lilyallen) July 9, 2014

And fans made it clear her absence would be felt.

I'm sad you're not playing @Tinthepark too @lilyallen Loved you at Big Weekend xx http://t.co/omzUq1f2J7
— Laura Boyd (@STVLaura) July 9, 2014

There's a good chance the mum-of-two is still on a high following her set at this year's Glastonbury, where she flashed her knickers.

She took to the stage in front of over 100,000 people at the Worthy Farm site in a pink haze before deicating her track 'F**k you' to Fifa boss Sepp Blatter.

While Allen will not be at T in the Park, fans can look forward to performances from the likes of Pharrell Williams, Calvin Harris and Ellie Goulding.