On March 7 , 2015 , Exo began their second headlining world tour , " Exoplanet 2 – The Exo ' luxion " , with 70,000 attendees across five nights at the Olympic Gymnastics Arena in Seoul . The group released its second studio album '' Exodus '' on March 30 , 2015 , in both Korean and Mandarin versions . Domestic pre-orders for the album surpassed 500,000 copies within 24 hours , setting a new record for pre-orders . Lead single " Call Me Baby " was released ahead of schedule , on March 27 , because versions of the song had been leaked online . The music videos were released four days later ; the Korean version later became the most-watched K-pop music video of the first half of 2015 . The album spent a record four consecutive weeks at number one on the Gaon Album Chart and sold over a million copies , making it Exo 's second album to do so , after '' XOXO . '' '' Exodus '' won Album of the Year at the 2015 Mnet Asian Music Awards , giving Exo their third consecutive win . In April 2015 , '' Exodus '' peaked at number 95 on the US '' Billboard '' 200 , making the group the highest charting Korean artist . Exo also entered '' Billboard '' 's Canadian Hot 100 chart at number 98 , making them the first K-pop group and second Korean artist to chart there
2015 Mnet Asian Music Awards
2015 Mnet Asian Music Awards
Exo (band)