Pop pals Westlife and Backstreet Boys were handed a bar bill for a whopping $48,000 after they enjoyed a night out together in Stockholm.

The boy bands, worth a combined $112 million, ran up the huge tab after partying in the Swedish city's most exclusive nightclubs.

Westlife are in Sweden to record their new album while The Backstreet Boys had flown in to film a new T.V. show.

Westlife member Nicky Bryne says, "We went out to all the top clubs and really let our hair down. There was a huge bar bill at the end of the night, but it was the last chance to really chill out before the serious work begins. We drove around in limousines and the champagne flowed all night long."

The next day the two groups were handed the bills to split between them. -- WENN