Seeking songwriter to write piano arrangement + vocals for sister's wedding

Funk Pop-Rock Singer-Songwriter Rock

Seeking songwriter to write piano arrangement + vocals for sister's wedding

My sister is getting married in September and I would like to play an original song for her and her husband-to-be. I play the piano and my other sister sings, so we would like to perform together, yet have little songwriting ability. Open to genres including pop, funk, rock, soft rock, singer-songwriter. Would love to incorporate some humor as well.