She posted a video over the weekend featuring Wilson and his former teammate Robert Turbin singing an a capella version of Dru Hill's 1999 hit Beauty. She captioned it "Music Video Chronicles in The Streets of #NewOrleans... Stick to Football Fellas."
The impromptu street jam is featured on Ciara's Instagram. She's laughing at them both as they attempt to sing the song, sans instrumental backup.
Just a few hours earlier, Wilson was seen singing on an airplane, E! News reported.
The 30-year-old singer and 27-year-old NFL star announced their engagement in March during a trip to the Seychelles.
The two have been dating since spring 2015 and made their red carpet debut as a couple at the BET Awards in June. They are known for their vow of celibacy.