Cody Simpson is ''begging'' Gigi Hadid to rekindle their relationship.

The 18-year-old singer, who split from the 20-year-old model in May due to their hectic schedules, has reportedly been ''drunk dialing'' the blonde beauty amid rumours she has moved on with Joe Jonas.

A source close to the Australian star told the US edition of OK! magazine: ''[He has] been drunk dialing her, begging to give him another try.

''Cody went crazy with jealousy when he saw her out with all these new guys - he just can't believe she's so ready to move on so quickly and it's really hit him hard.

''When he has a few drinks, all his insecurities come out and he starts leaving drunken messages for her.''

But a source close to the Sports Illustrated model recently insisted she and Joe, 25, are just having fun, as she is still getting over the 'Home To Mama' hitmaker.

The insider said: ''They hang out and make out. They're dating, going out to dinner.

''They're cute and affectionate together. But it's more of a rebound in her mind.''

A spokesperson for Gigi announced her split from Cody in May, but refused to rule out a reconciliation, saying: ''Cody and Gigi want each other to be in a place right now that allows him to only focus on his music, fans, and new message, while she can focus and continue building her career.

''They love each other dearly and have split up in hopes that growing on their own paths will bring them together in the future.''