Westlife and Lisa Scott-Lee were among the winners at the Naomi awards, an alternative to the Brits, which give prizes for the worst acts in pop.
Westlife have had numerous number ones over the past six years
The light-hearted awards, run by digital channel Music Choice, are voted for by music industry experts.
Former Steps singer Scott-Lee won worst British female solo artist, worst British single and worst pop act.
Westlife picked up worst international album and group and outstandingly bad contribution to music.
The awards are named after supermodel Naomi Campbell's short-lived music career. She released a single called Love and Tears in 1994.
Pete Doherty's band Babyshambles picked up the dubious honour of worst live act for the second year running.
Named and shamed
X-Factor winner Steve Brookstein won worst British album while Lee Ryan narrowly beat James Blunt to the worst British male solo award.
"The Naomi Awards are a chance for true music aficionados to point the finger at those artists who have made truly awful music in the past year," said Music Choice director Simon George.
Ms Dynamite picked up worst urban act. The singer was recently ordered to complete 60 hours of community service for assaulting a police officer outside a London nightclub.
Six-strong US dance troupe Pussycat Dolls were named worst international breakthrough act.
Winners in full:
- Worst British Male Solo Artist - Lee Ryan
- Worst British Female Solo Artist - Lisa Scott-Lee
- Worst British Album - Steve Brookstein, Heart and Soul
- Worst British Single - Lisa Scott-Lee, Electric
- Worst Attempt at Rock - Son of Dork
- Worst Urban Act - Ms Dynamite
- Worst Live Act - Babyshambles
- Worst Pop Act - Lisa Scott-Lee
- Worst International Male Solo Artist - Jack Johnson
- Worst International Female Solo Artist - Jessica Simpson
- Worst International Album - Westlife, Face to Face
- Worst International Group - Westlife
- Worst International Breakthrough Artist - Pussycat Dolls
- Outstandingly Bad Contribution to Music - Westlife