Justin Bieber Bringing Post Malone & Moxie Raia on North America Purpose Tour

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Justin Bieber performs with Jack U during Hard Summer Music Festival at Fairplex on Aug. 2, 2015 in Pomona, Calif.  

Post Malone and Moxie Raia will be joining Justin Bieber on the North American leg of his upcoming Purpose World Tour, which kicks off Wednesday in Seattle. 

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Post Malone is best known for his single "White Iverson" from last year. He has followed that with success and recently contributed to Kanye West's new album, The Life of Pablo

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Moxie Raia is a newcomer singer-songriter who recently released the song "On My Mind" with Pusha T ahead of her upcoming 931 mixtape, which drops March 23. She's been featured on tracks by Steve AokiJimi Tents and others. 

Bieber's 64-date U.S. tour kicks runs through all major American and Canadian markets including Los Angeles, Houston, Atlanta, Chicago and Toronto, wrapping July 19 at Madison Square Garden in New York City.