Rocker Adam Lambert has addressed his Christmas bust-up with boyfriend Sauli Koskinen for the first time on TV, insisting their behavior was "childish".

The singer and his partner were arrested in Helsinki, Finland on December 22nd following a fight at a gay club. The couple was questioned by police and released hours later.

Lambert has since laughed off the incident via a series of Twitter.com posts, and on Thursday, he opened up further about the incident during an appearance on Ellen DeGeneres' daytime program.

With his Finnish boyfriend in the audience, Lambert said, "Relationships are work and I'm so lucky to fall in love with a great partner. Everybody has their ups and down, things happen (and) when you add alcohol to a situation, things can get out of control. We had too much to drink, we screwed up. There was no injuries, no violence; it was more just childish, foolish messiness."
 
The incident prompted Lambert to take stock of his life and be a little more mature.

He adds, "I was a little irresponsible and I think what I learned from the experience was that I owe it to myself, to my loved ones and to my fans to be a little more adult and pull it together.

"My New Year's resolution was like, 'OK, we're cleaning up the act'... I think the universe always sends you wake-up calls."