While many teens might never get a chance to snap a picture with their favorite celebrity, one California girl has an entire collection of photos with the Hollywood elite.

Sarah M. has posed with many of the world's most-famous stars, ABC News reports. But the 16-year-old's rather unusual -- and equally fabulous -- hobby has one peculiar stipulation: she needs to continue getting A's in school.

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Her father promised to take Sarah to events if she kept her grades up. And "Stalker Sarah," as she's jokingly come to be known, has been doing just that since she first smiled alongside actor Robert Hays at age 12.

Four years later, Sarah has well-deserved bragging rights for briefly meeting thousands of celebs, including Justin Bieber, Julia Roberts, Brad Pitt, Lil Wayne and Barbara Walters.

But as Jezebel observes, details of Sarah's arguably glamorous life remain unclear.

The teen's interview with Robin Roberts on "Good Morning America" reveals neither her last name, nor how she gains access to A-list events.

Nevertheless, the audacious teen may have a bit of competition from a girl who's gotten off to a strong start in the star-studded game.

Tyler Sercombe has attended more than 60 red carpet premieres and posed alongside nearly 130 celebrities including Meryl Streep, George Clooney and Elton John.

But here's the kicker: Tyler's barely 2 years old and her mother brings her to all the events she can get into. After all, who's going to turn down a photo op with an adorable baby girl?

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