London, April 17 (Inditop.com) Pop diva Amy Winehouse has sparked rumours that she has gone under the knife once again – this time for her lips to get the perfect pout.

The 26-year-old singer was photographed on a night out with producer friend Mark Ronson with plump lips, suggesting that she might have undergone surgery, reports thesun.co.uk.

However, her father Mitch was quick to deny it.

“Are you joking? Do me a favour! Of course she hasn’t had her lips done. She had her breasts done three months ago. Everyone knows that. She hasn’t had anything else done since, certainly not her lips,” Mitch was quoted as saying.

Winehouse spent the previous week at her favourite clinic after complaining of pain in her breasts, fearing problems with her implants.