Holy Harry Styles! The 18-year-old One Direction singer is on a roll with the ladies as of late, but there's one gal his cute curls and charm didn't work on. Who was able to turn this down?

'The Bachelorette' castoff Jillian Harris!

Styles reportedly ran into Harris, 32, in Los Angeles last week and asked the brunette beauty for her number. Unfortunately for the U.K. casanova, Harris wasn't feelin' it. A source told Us Weekly, "Jillian feels awful [that this has gotten out]. He's adorable, but 18 is a bit too young for her." This isn't to say Harris doesn't think highly of the notorious ladies' man. She told the mag, "I was super flattered!"

This wouldn't be  the first time Harry's had the hots for an older woman. He notoriously dated U.K. television personality and 'X Factor' hostess Caroline Flack, 32, when he was 17.

We don't think Styles will be sad for too long. In addition to being one of the biggest heartthrobs on the planet, a few other famous women have their eyes on the 'What Makes You Beautiful' crooner. While they're slightly younger than Harris, they're still senior to Styles!