Bruno Mars has a love/hate relationship with his sisters, judging from the Christmas present they got him this year. 

Bruno wrote on Twitter , "My sisters got me a guitar strap for xmas," and included a picture of the strap in question.  It's got the outline of the Hawaiian islands on it -- Bruno and his family are from Hawaii -- and a message.  It says, "We Love You!!!...Schmuck."

Bruno has four sisters, who perform as a group called The Lylas .

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