Songfacts®:

• "When Did You Get Hot?" is a sexually charged song that celebrates the unexpected discovery of attraction to a former acquaintance previously overlooked. It's a playful, slightly steamy track where Sabrina Carpenter marvels at a guy's transformation from forgettable and awkward to distractingly magnetic. There have been more than a few romantic comedies with the same plot.
• Carpenter addresses a character named "Devin," though this is almost certainly a matter of rhyme and rhythm (it sort-of rhymes with "direction") rather than a real-life reference. Some have speculated about basketball star Devin Booker, but Carpenter has no known connection to him, and it seems far likelier that the name is just a convenient lyrical placeholder.
• Placed eighth on her 2025 album Man's Best Friend, the track follows the breakup-heavy run of "Nobody's Son" and "Never Getting Laid," serving as a pivot toward new romantic possibilities.
• Co-written with Amy Allen, Jack Antonoff, and John Ryan (with the latter two also joining Carpenter on production), the song leans into an R&B groove that feels both funky and breezy, reminiscent of the warm textures on Short n' Sweet's "Good Graces."
• Carpenter told Apple Music's Zane Lowe that the song only came together after she and her collaborators experimented with multiple versions - the kind of happy accident that wouldn't have happened without time to play around in the studio.
• Despite its flirty subject matter, "When Did You Get Hot?" is one of the few tracks on Man's Best Friend not labeled explicit.