Watch Beyoncé, Nicki Minaj’s “Feeling Myself” Rehearsal

Beyonce may be a pro when it comes to performing, but the star has yet to master her ice grill face.

Nicki Minaj clearly had a difficult time not cracking a smile as they practiced their “Feeling Myself” dance moves for the recent Tidal X: 10.20 benefit concert.

See clips posted on IG by Nicki Minaj:

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Feeling Myself – Live – Exclusively on Tidal

A post shared by Barbie (@nickiminaj) on Oct 26, 2015 at 4:24pm PDT

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Bey has spoken ????????? #RapQueen #QueenBey my #bayBey ? Still have the #Tidal kisses to all my QUEENS?

A post shared by Barbie (@nickiminaj) on Oct 26, 2015 at 4:06pm PDT

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https://www.facebook.com/beyonce/videos/vb.28940545600/10156277581160601/ check out Bey's full video of our stare down on her Facebook page ?

A post shared by Barbie (@nickiminaj) on Oct 26, 2015 at 12:32pm PDT