Justin Bieber has vowed to take a well-earned break after wrapping up his North American tour in Atlanta, Georgia on Saturday night (10Aug13). The pop superstar thrilled fans in Atlanta by performing with rapper Ludacris during the concert. After stepping off stage, Bieber took to his Twitter.com page and thanked his pal for making a surprise appearance, while he also revealed plans to take some time off before kicking off the Asian leg of his Believe tour in Thailand on 26 September (13). In a series of posts, he writes, "If it was gonna end it ended right. Last show in ATL (Atlanta) was epic tonight! Love to my big bro (sic) Ludacris for coming thru (through)... Happy to have a break but already miss the stage, the crew, the team, the band, the dancers, the fans. I love all of u (sic). Thank u. Grateful... I love what I do. I love performing. Thanks to everyone helping me live my dream. Now gonna (sic) get some rest. Much love." Bieber's last show also provided a thrill for fans of British boyband The Wanted as his opening act, Ariana Grande, invited bandmember Nathan Sykes to perform their new duet, Almost Is Never Enough, during her set. The Baby hitmaker's final show came on the same night pop rivals One Direction wrapped up their North American tour by ending a five-night residency at the Staples Center in Los Angeles.