Ariana Grande rocked the day-long annual concert Wango Tango, performing a mash-up of her three hits including 'Right There,' 'The Way,' and 'Problem,' where she was joined by rappers Big Sean and Iggy Azalea

Grande dazzled in a sexy black and white top and skirt and opened her portion of the show with rapper Big Sean and their hit, 'Right There.' The 20-year-old singer pumped out the crowd, shouting, "What's up, L.A.?!" before seguing into her hit, 'The Way,' for fans. Finally, as the uptempo riff for 'Problem' began, the energy was transformed and Grande started singing her latest single. Iggy Azalea emerged from the crowd and joined Grande on stage, wearing a similar black and white outfit.

'Problem' has proven to be one of Grande's biggest hits so far: it earned the honor of being the fastest song to reach number one on iTunes just 37 minutes after it was released at midnight, April 28.

Click 'Play' above to watch Ariana's performance and Arianators, tell us what you think in the comments below!