Ariana Grande stunned as she kicked off the show ( Image: WireImage)

We imagine singing at the Grammys is as big as it gets, and we think Ari lived up to her pop credentials.

Wearing a gorgeous navy dress, Ariana has admitted that she has a grand total of six outfit changes tonight.

Our editor Katie Hind said: “The singer is performing this evening and let slip to friend Kelly Osbourne that her wardrobe is bulging somewhat.”

“Ariana also wanted a separate frock should she win either of the two awards she has been nominated for.

“She’s up for best pop vocal album and best pop duo/group performance for her hit Bang Bang.”92690549537

Grammys 2015: Ariana Grande gets emotional as she kicks off the awards show with sensational performance

The pint sized singer got a little choked up as she sang the final few notes of an epic ballad from her Grammy nominated album

Ariana Grande set the bar high as she took to the stage early in the Grammy Awards evening.

Singing the beautiful ballad Just A Little Bit Of Your Heart, the 21-year-old showed off her stunning vocal range as she blasted through the tear-jerker.

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In fact, Ariana put so much into her performance, that she got a little emotional herself, throwing her hands over her eyes as she came to the end of the song.

Ariana Grande stunned as she kicked off the show ( Image: WireImage)

We imagine singing at the Grammys is as big as it gets, and we think Ari lived up to her pop credentials.

Wearing a gorgeous navy dress, Ariana has admitted that she has a grand total of six outfit changes tonight.

Our editor Katie Hind said: “The singer is performing this evening and let slip to friend Kelly Osbourne that her wardrobe is bulging somewhat.”

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She showed ’em how it’s done ( Image: WireImage)

“Ariana also wanted a separate frock should she win either of the two awards she has been nominated for.

“She’s up for best pop vocal album and best pop duo/group performance for her hit Bang Bang.”

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The 57th Grammy Awards is one of the biggest nights on the music calendar, with a star studded guest list turning out to walk the red carpet.

Held at the Staples Center in Los Angeles, California, Hollywood’s finest have cleared their calendars to make sure they show their face at this ultra glamorous event – as well as all the pre-Grammy parties too .