Kristen Bell has become the fairy godmother we never had. In her recent stint as the host of “Jimmy Kimmel Live,” the “Frozen” star has helped a high school boy Michael from Los Angeles makes the ultimate proposal to his friend Sarah.

Kristen's introduction made everyone laugh until she revealed...

It all started when Bell asked Sarah to go on a scavenger hunt on Hollywood Boulevard wearing an Anna costume. The game is themed “Frozen” where the participants are tasked to find Kristoff hiding outside among a sea of people.

According to People, as Sarah went out for the hunt, Kristen Bell announced to her audience that everything was a lie and that "The Fast and The Frozen-est" game was actually part of a plan to help Michael propose to Sarah to go with him to the prom.

Interestingly, she revealed that Michael was actually hiding in the Kristoff costume.

And then things got extra romantic

Things got extra dramatic as Kristen Bell announced that Michael and Sarah never dated before. The young girl had no idea that Michael was about to ask her to prom. The guest host joked that it could go terribly wrong. However, something unprecedented would make great TV.

When the “Frozen” pair was back the stage, “Kristoff” revealed his identity and turned to Sarah. “Sarah, there’s something I wanted to ask you, but I didn’t know the words, so Kristen Bell is going to help me,” Michael said.

The "Frozen" fest kicked off when Kristen started belting her trademark songs from the theme song

Kristen Bell gave Sarah time to think about the proposal and launched into singing a “Frozen” hit medley where she altered some words of the song. “Do you want to be his prom date and go with Michael to the prom?” she sang.

“If you say no this will be awkward…” Bell continued.

By the time the audience burst into laughter, Sarah announced a resounding “Yes!” The two will receive a stretch limo as they attend to their prom. Moreover, Sarah will be receiving a makeover package to be handled by a professional glam squad while Michael will be given a tuxedo rental to make him the most handsome kid at the party.

This “Frozen”-themed proposal does down the history as the best and most memorable one. Thanks to Kristen Bell and Jimmy Kimmel’s absence to father his newborn son, to say the least. Bell's appearance on the show is reportedly part of an early promotion of the movie's sequel in 2019.

Watch the romantic clip in the clip below.