Selena Gomez has a BIG reason to celebrate these days. Her song 'Come & Get It' has hit No.1, and it seems like she can barely believe it!

She posted a video of her finding out that she had claimed the top spot, and the songstress appears to get very emotional when one member of her team breaks the news to her. We can't tell if Selena is laughing or crying, but it seems like a combination of both -- a rather fitting reaction if we don't say so ourselves!

She then recorded an emotional personal statement to her fans saying, "I've done four records and this is the first No.1 that I've ever had, so I cannot thank you guys enough." After all her hard work, Selena deserves it!

Watch 'Come and Get it' here: