The reunited Libertines played their first gig in a north London pub
By Tim Masters
Entertainment correspondent, BBC News
The Libertines have played together for the first time since they split in 2004 and pledged not to break up before their summer festival dates.
Frontmen Peter Doherty and Carl Barat, bassist John Hassall and drummer Gary Powell also held a media conference at the north London pub venue.
Doherty said: "Looking back on it, we did produce things we are so proud of and we want to get back to that."
The band is due to play the Reading and Leeds festivals at the end of August.
The press conference took place in a packed bar with the four band members sitting on bar stools.
Libertines say they're looking forward to playing live at Reading and Leeds
Doherty made light of many of the questions, particularly about his past drug problems.
Asked how hard it had been for them to get back together, Doherty looked at Barat and quipped: "He never answers his phone."
On the reported fee in excess of £1 million to play the festivals, Doherty said: "What's appealing about the money is what's left over after tax."
He added: "I'm dying to play some of those songs with the boys and get some new things done."
Barat said: "Four months is a long time for the Libertines, so whatever happens happens. We're going to see how it goes. If it works, it works."
The pair have a turbulent history, including Doherty's burglary of Barat's flat in 2003 which led to a jail term.
Despite this, the band members said they expected to still be together by the time of the summer festivals.
"We're not going to fall out," Doherty said.
Barat added: "We're all really excited to do it - we're not going to let anything silly get in the way. I think we're committed."
After The Libertines split in 2004, Barat formed Dirty Pretty Things and Doherty formed Babyshambles.
The reunited band said they did not expect to play new material at Reading and Leeds.
"It's going to be hard enough to work out some riffs from the old days," Doherty said.
Barat added: "We just wrote a song in the guitar shop - we bought some guitars to bring down here - and it turned out to be Don't Look Back in Anger!"
The media conference accompanied a short gig for fans at the venue, including the song Can't Stand Me Now, which refers to the sometimes difficult relationship between the two frontmen.