22 June 2010One of Hollywood's youngest rising stars, Amanda Bynes recently shocked her fans when she announced she would be retiring from acting at just 24. But it's not the only news got her fans chatting, before and after pictures suggesting Amanda has had cosmetic surgery have also hit the wires and caused all kinds of speculation.Amanda made her name as a teen star in TV shows like All That and The Amanda Show before moving into films, and was identified as the fifth highest paid celebrity under 21 by Forbes in 2007 - which made it all the more shocking when she announced her decision to leave show business behind on social networking site Twitter. According to Thaindian News, the reason behind Amanda's plastic surgery makeover - which is rumoured to include breast enlargement and fillers in her lips - could be a desire to leave her child star image behind, and achieve a more mature appearance. While her decisions may have surprised fans, it appears that Amanda's cosmetic surgery was well thought-out, and another step in her departure from her earlier career and lifestyle. Last year, the star told Cosmopolitan: "I used to be known as the girl who was anti the club scene. But I'm finding a balance. I can have a drink and dance if I want. You have to go out to meet people and guys. I'm in that phase where I just want to have fun." She even appeared in revealing lingerie on the cover of Maxim magazine in February, saying she thought that "every shot ... was sexy" and that her new, sexy appearance is "who I am."