About

The Lockjaw Trend is a glow up trend on TikTok set to the song "Lockjaw" by Sir Mix-a-Lot, in which users show videos or images of themselves in 2020 compared to 2025 to show off their glow ups. The trend was popularized on the app in January 2025. The meaning of the words "lockjaw" became the subject of discourse on TikTok at the same time. In the context of the song, it refers to Sir Mix-a-Lot leaving his opponents speechless with his music.

Origin

It is unclear who started the "Lockjaw" trend on TikTok. The earliest known related video is a makeup glow up video posted by TikToker^[1] @muslimamua on January 20th, 2025, in which she shows herself without makeup, then with makeup as Sir Mix-a-Lot sings "lockjaw," garneing over 40,000 views in a week.

On January 22nd, TikToker^[2] @zakdanielofficial posted a video where he shows the glow up he had from 2020 compared to 2025, transitioning to his 2025 photo when the lyric "lockjaw" is sang, garnering over 4.3 million views in a week. This is the earliest known video following the specific 2020 vs. 2025 glow up trend.

Spread

The trend continued to spread on TikTok throughout January 2025. On January 26th, 2025, TikToker^[3] @brooke.schmidt_ posted a video following the trend that garnered over 2.6 million views in three days.

On January 28th, TikToker^[4] @leahwatki posted a video following the trend that garnered over 4.3 million views in a day.

Various Examples

Search Interest

External References