N-Dubz want to duet with Lady GaGa.

The trio - who recently topped the UK singles chart with 'Number 1', their collaboration with Tinchy Strider - would love to work with the 'Poker Face' singer but have vowed not to take style advice from the star, who is famed for her raunchy outfits.

Rapper Fazer said: "Lady GaGa's doing really well so it would be good to do a collaboration.

"But I won't be wearing just pants to perform - that's not cool."

Both acts will appear at the Orange RockCorps event in Manchester in July, which sees fans pledging to do charity work in their local communities in exchange for a ticket.

Fazer - who makes up the group with Tulisa and Dappy - added: "It's a good opportunity for kids who haven't got much money to get a ticket as well as helping the community."

To launch Orange RockCorps, N-Dubz joined 45 fans to help clean up a graveyard in Tower Hamlets, east London yesterday (27.05.09).