Girls Aloud have too much "baggage", their former manager has claimed.
Louis Walsh - who took on the quintet after they won UK TV talent show 'Popstars: The Rivals' in 2002 - admits he has great admiration for Nadine Coyle and thinks that affected his relationship with her bandsmates Cheryl Cole, Nicola Roberts, Kimberley Walsh and Sarah Harding.
He said: "I don't like working with them too much any more because there's too much baggage and far too much politics.
"I always thought that Nadine was the star, that she was the real singer in the band, and The Others held that Against Me."
However, the 58-year-old music manager does admit Cheryl - who he sits alongside as a judge on UK TV talent show 'The X Factor' has managed a spectacular career turn around, but credits it on her relationship with her soccer star ex-husband Ashley Cole.
He told Glamour magazine: "Well, Cheryl married a footballer... and she totally transformed herself. She's a naturally beautiful woman and she's a fashion icon now.
"But if you ask me why Victoria Beckham is famous, The Answer is because she married a footballer."
Girls Aloud have been on hiatus for the past year, with reports suggesting the band's future is uncertain, largely due to a rift with Nadine.