Deryck Whibley Photo by: Jason Merritt / FilmMagic Less than a month after amicably splitting from wife Avril Lavigne, Deryck Whibley hit the town in Las Vegas Friday night.

The Sum 41 singer celebrated the 20th anniversary of The Mirage where he was spotted getting close with a new woman – model/designer Hanna Beth Merjos..

Source: http://www.people.com/people/article/0,,20310067,00.html