Summary

While Freya Skye sits at the flat end of the scale with a Mandibular Plane Angle of 8.5°, Katy Perry measures 20.3° on her jaw's profile, scoring 10.0 for this Harmony measurement. The angle assesses the steepness or flatness of the lower jaw relative to the horizontal plane, and a balanced value avoids extremes such as hyperdivergent growth or occlusal misalignment. Her reading sits inside its ideal range of 16.0 to 23.0°, higher than 45% of the women on the wiki, and Rihanna and Charli D'Amelio record the same 20.3° while Anya Taylor-Joy comes in at 20.4°. At the other extreme, Jisoo (BLACKPINK) reaches the highest value on the wiki at 37.4°. Her Katy's Gonion to mouth line and Katy's Gonial Angle are also measured, and the Katy's full Harmony breakdown shows how this angle fits the rest of her face.