Brit singer Amy Winehouse's publicist has dismissed rumours that the 'Rehab' hitmaker is joining hands with Lady Gaga for comeback album.

The troubled British singer is preparing to release her long awaited third album, the follow-up to 2006's Grammy-winning 'Back to Black,' reports Contactmusic.

She has been on a four-year hiatus, which saw her battle drink and drug demons.

The National Enquirer, a US tabloid, previously reported that Lady Gaga had offered to fly to London to make music with Winehouse to ensure her upcoming release is a success.

But Winehouse's rep has denied the rumours, insisting that the claims are "not true at all." (ANI)