The star-studded award ceremony to be held on July 15 will witness power-packed performances by Salman Khan, Alia Bhatt, Katrina Kaif, Shahid Kapoor, Sushant Singh Rajput and Kriti Sanon.
"I am happy to be back to the IIFA stage this year as I join my close friend Karan Johar to host the IIFA Awards in New York. This year it's going to be super fun and glamorous in every way as Karan and I are going to have lots of surprises in store for our fans internationally," Saif said in a statement.
"I am absolutely excited to be a part of IIFA Awards in New York this year. I'm looking forward to join everyone and see fans at the amazing MetLife stadium. This year is truly going to be a grand celebration and I can't wait to be there," Varun said.
The musical evening, IIFA Rocks 2017, will be held on July 14 and will celebrate music maestro A R Rahman's 25 years in the industry.
The evening will be hosted by Riteish Deshmukh and Manish Paul.