He's been a jockey AND a pop star... so it's no wonder Union J's JJ was ALWAYS an adrenaline seeker

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REVEALED! 21 MUST-SEE Pics Of Our Jingle Bell Ball 2014 Line-Up Before They Were Famous

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See the full gallery: REVEALED! 21 MUST-SEE Pics Of Our Jingle Bell Ball 2014 Line-Up Before They Were Famous