The 21-year-old singer first came on stage during “Love Me Harder” to sing The Weeknd‘s vocals. He then went solo to sing his new single “Where Are U Now” and Ariana later joined him again to duet on “As Long As You Love Me.”
Justin joked that he was excited to not mess up the lyrics like he did the last time he made a guest appearance during Ariana‘s concert last month.
“What should I do tonight? Hmmmm,” Justin teased his fans on Twitter before the concert.
Justin Bieber – “Where Are U Now”
Click inside to watch Justin Bieber’s performances with Ariana Grande…
Ariana Grande & Justin Bieber – “Love Me Harder”
Justin Bieber & Ariana Grande – “As Long As You Love Me”