Justin Bieber and Britney Spears have been named among the worst pop acts of all time.
Other acts in Gigwise’s new feature include N-Dubz, glamour model Katie Price and Paris Hilton.
Celine Dion, Ke$ha and Jessica Simpson have also made the countdown.
Check out the 20 Worst Pop Acts Of All Time on Gigwise now.
What do you think of the countdown? Post your thoughts by filling out the comment form below.
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- Justin Bieber rocks.

- N-Dubz Are Just the best Youz All Cant say that You Stupid People .>>! I Dont know Whats Wrong With All Yous People That think N-Dubz And justin Bieber N All Aree The Worst Pop Acts Ever ! Well There Noh Well Britney Spears Is Bu Not N-Dubz !!!!!!!!!! Their Just The Best ! XxXxxxX i lOVEEE N-Dubz ...! Sighned By Their No.1 Fan !

- Your messed up N-Dubz are amazing so is justin bieber Britney you have a point but just because you news people have a slow week dont go making trouble you lot cant sing you cant rap. So we'll leave it there N-DUBZ N-DUBZ WHAAAT?!!

- You Must Be Kidding On Saying NDUBZ What Were Yous Thinking??????

- how could u say n-dubz and justin bieber are the worst pop acts ever they r THE BEST ACTS EVER! u people r crazy u no nothing about pop acts if u say they r the worst pop acts ever

» View all 8 comments~ by Justin Bieber Fan 5/20/2010 Report
~ by Erika Loves N-Dubz 5/23/2010 Report
~ by N-Dublet 5/25/2010 Report
~ by Anon 6/1/2010 Report
~ by n-dublet /bieber mania 6/5/2010 Report