6) Calum Hood from 5 Seconds Of Summer
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Sexy Pop Stars: The HOTTEST Male Singers Of 2014 REVEALED!
5. 6) Calum Hood from 5 Seconds Of Summer
5SOS' ever-charming funny-man Calum is next up on our countdown, and we reckon both that ADORABLE face and those bulging biceps MAY just have something to do with it! Picture: Rex