Watch Camila Cabello Sing a Teaser of Ed Sheeran Collaboration 'The Boy'

The singer joined Billboard’s Hot 100 Top 10 Countdown on Facebook Live to celebrate her song “Havana” topping the chart.

Back in May, Ed Sheeran revealed that he had co-written a song titled “The Boy” with Camila Cabello for her debut album Camila. Unfortunately, the track didn't end up making it onto the record, but Cabello treated Billboard to a preview of the song on Monday (Jan. 22).

The former Fifth Harmony member joined Billboard’s Hot 100 Top 10 Countdown on Facebook Live to celebrate her song “Havana” topping the chart. In addition to notching her first-ever Billboard Hot 100 No. 1, Cabello’s album also currently sits atop the Billboard 200 albums chart.

To commemorate the feat, Billboard's Kevan Kenney asked Cabello to give her fans a taste of the unreleased song. Obliging, she sang the pre-chorus, which features the lyric: “Oh boy hold your tongue, I don’t want no apologies/ ‘Cause we both know you’re thinking with what’s under your jeans.”

Previously speaking of the collaboration in an interview with Brazilian personality Hugo Gloss, Sheeran had described its sound as having a “James Brown-inspired funk to it.” He also referred to it as having “sass and big vocals. Camila has a voice that should really be shown off.”

You can watch Camila Cabello sing a snippet of "The Boy" above.