The singer might want to learn the lyrics to the hit single.
The pop star's fans weren't thrilled when he said he didn't know the words to the hit song.
ET got an exclusive backstage pass when Iglesias played a sold-out show at Staples Center in LA.
Find out which star made the most!
The 26-year-old singer sang his hits, hits by others and told some funny stories during Tuesday's 'Carpool Karaoke' on 'The Late Late Show.'
The singer and the late night host went head to head in the weirdest 'Carpool Karaoke' stunt ever.
Bieber donated his autographed hockey stick to the Manchester Storm ice hockey team.
Proceeds stemming from the auctioning off of the 'Purpose' singer's stick will benefit the Red Cross' efforts in the city following the tragic terrorist attack last month.
ET was on the ground as some of music's biggest stars poured their hearts out onstage for the victims of the Manchester terrorist attack.
The 24-year-old swung by Sirius XM's 'Morning Mash-Up' and 'Elvis Duran and the Morning Show' on Monday.
Selena Gomez has nothing but love for her fellow artists following Ariana Grande's touching One Love Manchester benefit concert on Sunday.
Cameras caught the candid moment in the crowd.
Ariana Grande's One Love Manchester concert will benefit those affected by the May 22nd attack.
'I won't let go of hope,' the 'Purpose' singer said.