Bills quarterback Josh Allen's fiancée, Hailee Steinfeld, draws attention during Buffalo's playoff game against the Baltimore Ravens.

Bills quarterback Josh Allen's fiancée Hailee Steinfeld is glowing in a newly surfaced photo before the Ravens playoff game.

Bills quarterback Josh Allen's fiancée, Hailee Steinfeld, shares an emotional message to fans before facing the Ravens in the playoffs.

After Josh Allen and the Buffalo Bills took care of business against the Baltimore Ravens on Sunday, fans were quick to heap praise on the star quarterback and the team. However, there was one other member of the Bills Mafia that fans credited for the team's success.

Actress and singer Hailee Steinfeld is dating Buffalo Bills QB Josh Allen — and now they’re engaged!! — and even though we’ve seen only glimpses of the pair together, they’re a couple. And just a week ago, Steinfeld showed up to cheer on Allen in the playoffs.

Hailee Steinfeld is engaged to Buffalo Bills quarterback, Josh Allen. The Bills will be facing the Baltimore Ravens in a playoff game.

The Josh Allen-led party rolls on to Kansas City, where the Bills - the second-seeded team in the AFC - take on the top-seeded Chiefs in the AFC Championship Game.

So many folks have congratulated Buffalo Bills QB Josh Allen and actress/singer Hailee Steinfeld on getting engaged, a relationship that has helped the quarterback have an MVP-level season.

RELATED: Hailee Steinfeld never-before-seen photo surfaces before Bills-Ravens playoff game Fans — and media outlets — eagerly awaited her fit to drop Sunday, but alas nothing. Her best friend Jordan Michaels,