Robin Thicke wants his wife Paula Patton back so bad he wrote a song about it.

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The song is titled "Get Her Back" and TMZ reports that Thicke will perform it live on stage during Sunday's Billboard Music Awards. Thicke's latest plea for forgiveness includes the lyrics, "I should've kissed you longer / I should've held you stronger / And I'll wait for forever for you." The Billboard Music Awards will air live from the MGM Grand in Las Vegas on Sunday at 8 p.m. ET on ABC.