Trainor performed "Dear Future Husband" live in a sailor's hat and knee-length skirt at the
iHeartRadio Music Awards on March 29, 2015. Her male backup dancers were dressed as seamen in red
suspenders,
boaters, and short pants.
MTV News' Brenna Ehrlich commented they looked like extras from
H.M.S. Pinafore and Trainor resembled a 1950s
pin-up model, while
The Hollywood Reporters Ashley Lee described the rendition as throwback sailor-themed heaven. On May 19, 2015, Trainor performed an
acoustic version of the song on her ukulele at the
eighth season of
The Voice, accompanied by Kadish on guitar. She was surrounded by lamps during it. Jodi Walker of
Entertainment Weekly wrote that the performance illustrated to the show's future winner that the record industry can be a place for "music that sounds like a current spin on a different generation of music". Trainor opened her
That Bass Tour (2015) by performing "Dear Future Husband" in a blue-green crinoline with pleats and an enchanting top, which
USA Todays Carlee Wright considered a strong start to the show. She also performed the song as the first on the
MTrain Tour (2015), with a band and four backup dancers. Trainor included it on her
set list for the
2014 Jingle Ball Tour,
the Untouchable Tour (2016), and
the Timeless Tour (2024). On January 18, 2020, Trainor and fellow judge
Olly Murs performed "Dear Future Husband" as a
mashup with the latter's 2011 single "
Dance with Me Tonight", on the
ninth season of
The Voice UK, after he pointed out similarities between the tracks. A gay couple from Minneapolis trying to adopt a baby released a parody of "Dear Future Husband" in March 2015, entitled "Dear Future Baby", about "how they promise to be the best dads they can be". In September, the
Society for the Prevention of Cruelty to Animals of
Anne Arundel County, Maryland, made a parody of the song from the narrative of shelter animals listing their demands from future families.
Stanford University's medical students created a parody of it about things an aspiring doctor should not do, entitled "Dear Future Doctor", which was released in November and accumulated 120,000 views on
YouTube within a month. ==Credits and personnel==