“Stranger Things” breakout star Millie Bobby Brown has signed with WME.

Sources tell Variety the young star was being courted by all the big agencies, and WME landed her in a very competitive situation.

While meeting with other agencies, Brown’s father had been asking for a large sum of money upfront, insiders say, which turned many companies off. WME did not pay to rep Brown, our source says.

The 12-year-old British actress has arguably become the hottest star-to-watch, following this summer’s rabid success of the supernatural Netflix series, which has already been renewed for a second season.

Brown plays one of the central figures on “Stranger Things,” a mysterious young girl named Eleven who has telekinetic powers. Her on-screen talents and range of ability to portray such an emotionally-troubled character have wowed critics and fans — over 1.5 million of them who follow her on social media across Instagram and Twitter.

Aside from her acting skills, Brown has won over audiences with her off-screen charisma. This summer, she rapped a Nicki Minaj verse on Jimmy Fallon’s “Tonight Show,” which went viral, and that wasn’t her first viral moment — she also released a video of her head being shaved for her part on “Stranger Things.” Along with her young “Stranger Things” costars, Brown also put on a song-and-dance number at the Emmy awards.

Prior to “Stranger Things,” Brown had smaller roles on “Once Upon A Time in Wonderland,” “NCIS,” “Modern Family,” “Grey’s Anatomy” and “Intruders” on the BBC.

While being repped by WME, Brown will continue to be managed by Affirmative Management.