Original sentence: Let Loose, managed by Kim Glover Management, whose phenomenally selling single “Crazy 4 U” was only kept off the top spot by the equally phenomenal ‘Love Is All Around’, internationally recognised Irish boy band D-Side, of whom Derek Moran has gone on to present kids' TV show Milkshake on Channel 5  and Dane Guiden has signed a new production deal with Edge AVENUE,  Princess Stephanie of Monaco, Ignorants and PJ and Duncan whose pop career, co managed by Dave Holly, was the launch pad for Ant and Dec’s continued success.More recently Kim has discovered and managed some of the UK’s biggest and most successful groups including B*Witched - Irelands most successful female group whose many record breaking achievements included 4 consecutive number 1’s and selling more than 1 million copies of their debut album in the USA
Edited sentence: Let Loose, managed by Kim Glover Management, whose phenomenally selling single "Crazy 4 U" was only kept off the top spot by the equally phenomenal 'Love Is All Around', internationally recognised Irish boy band D-Side, of whom Derek Moran has gone on to present kids' TV show Milkshake on Channel 5 and Dane Guiden has signed a new production deal with Edge AVENUE,  Princess Stephanie of Monaco, Ignorants and PJ and Duncan whose pop career, co managed by Dave Holly, was the launch pad for Ant and Dec's continued success.More recently Kim has discovered and managed some of the UK's biggest and most successful groups including B*Witched - Irelands most successful female group whose many record breaking achievements included 4 consecutive number 1's and selling more than 1 million copies of their debut album in the USA