While everyone's already on the lookout for Justin Bieber's new single "What Do You Mean?", pop star Ariana Grande has already heard of the new song and she said 'it's fantastic', according to reports.

The 22-year old 'One Last Time' singer, who got an early listening session of the song, sent her excitement on social media where she seemingly could not stop herself from gushing about the new song.

On her Instagram page, which is cross-posted to her Twitter account, Ariana shared a photo of herself holding a sign that reads "Justin Bieber, 22 days, What Do You Mean?" and a number 22 placed inside a heart.

She captioned it, "@justinbieber 22 days #whatdoyoumean (yes, I've heard it.. it's fantastic),"

Ariana Grande is not the first person to express an admiration for Bieber's new song as his circle of friends, including Mariah Carey, Ruby Rose and James Corden, have also posted photos of themselves, holding signs promoting his new single.

Besides Ariana Grande, fans are now thinking who else are privileged enough to get a listen of Bieber's new song  'What Do You Mean?' ahead from the others?

As Ariana teases the new track, it seems like everyone is also getting more thrilled and excited to hear Justin Bieber's new song. In fact, the single is already making its way up to the top of the Billboard charts, reaching at No. 4 as of yesterday.

Justin Bieber has an upcoming tour, which will begin on August 22, Saturday, at the Beach Club located in Pointe Calumet, Canada. Other scheduled tour dates of the singer will be due in the late August.

Ariana Grande on the other hand, is currently busy wikth her North American tour, which will last until October 13.

Justin Bieber's new track 'What Do You Mean' will be released this coming August 28, Friday.