Justin Bieber
Justin Bieber, pictured here performing at the 2015 American Music Awards on Nov. 22, 2015 in Los Angeles, has cancelled appearances on the "Late Show with Stephen Colbert" and the Thanksgiving Day Parade on CBS. Getty

Justin Bieber has been on a roll lately, performing numerous live shows and dropping his new record "Purpose" on Nov. 13. However, it appears the 21-year-old singer might be getting a little burned out, based on news that's left fans wondering what's going on with him. Bieber has canceled two major shows, including his 2015 Thanksgiving Day Parade appearance.

TMZ reports Bieber is spent "emotionally and physically" and had to cancel a performance taping that was supposed to air during the Thanksgiving Day Parade on CBS. He's also canceled his performance on the network's "Late Show With Stephen Colbert."

Bieber announced on Twitter he wouldn't be able to appear at the "Late Show With Stephen Colbert." He apologized for not being able to make it to New York City for the show.

The "Sorry" singer didn't specify why he had to cancel both appearances. In addition to tweeting at the"Late Show" Twitter account, he also sent a tweet to host Stephen Colbert. Bieber said: "Thank you for the understanding as sometimes life kicks our a-- and we need to deal with it. I will see u soon. Thank you."

Sunday night, the singer closed out the 2015 American Music Awards by performing a medley of his songs including "What Do You Mean?," "Where Are Ü Now" and "Sorry." The last song he played was "Sorry" as he danced and sang his way through rain onstage.

While Bieber may need a break, his career certainly isn't suffering. He broke a Billboard record Monday that was held by the Beatles and Drake when he had 17 songs appear on the Hot 100 chart. The Beatles and Drake previously held the record with 14 songs on the chart at one time. Bieber's "Purpose" also debuted at No. 1 on the Billboard 200, beating out One Direction's new album "Made in the A.M."

Bieber also just had the largest first sales week of his career, selling over 649,000 equivalent album units, which is the largest total Billboard has ever gotten since it started counting overall units in 2014, according to Billboard. However, that could change when Adele's sales numbers come in after her release of "25" on Friday.

Despite cancelling his upcoming performances, Bieber is expected to hit the road in 2016 for the "Purpose" World Tour, which kicks off on March 9 in Seattle. You can see his full list of tour dates here.

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