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When it comes to the most adorable father-son duo in Hollywood, we have to say Gavin Rossdale and son Kingston get our vote.

Gwen Stefani's 4-year-old son is usually joined at the hip to mom, but looks like Kingston was having a blast with dad at a local park. Mom needs a break every once in awhile!

Any youngster with style like Kingston is bound to break hearts one day. See the little barefoot cutie flirting with a young brunette while daddy sits nearby ... after the jump.