Summary

Where Snejana Onopka's lower lip sits furthest forward on the wiki at 1.30mm, Katy Perry's Lower Lip Burstone Line measures -2.37mm, inside its ideal range of -3.90 to -1.50mm and scoring 10.0. The measurement assesses lip prominence relative to the line from nasal base to chin, and mid-range positioning avoids retruded or overly full lips, considering ethnic variations for harmony. Her value is higher than 65% of the women on the wiki, and 45% of them measure inside the same ideal range. Her closest matches are ning ning at -2.39mm and Jada Pinkett Smith at -2.32mm, while Naomi Campbell sits at the opposite end at -10.13mm. For the wider picture, see Katy's Holdaway H Line and Katy's Upper Lip S-Line Position in Katy's full Harmony breakdown.