Demi Lovato Congratulates Selena Gomez on Baby Sister!

Demi Lovato waves to the crowd while making her entrance on day two of X Factor auditions in New Orleans on Wednesday (June 12).

The 20-year-old entertainer was joined by her fellow judges Simon Cowell, Kelly Rowland, and Paulina Rubio to watch a bunch of hopefuls perform.

The next day, Demi sent her friend Selena Gomez a tweet to congratulate her on becoming a big sister after her mom Mandy gave birth to a baby girl.

“@selenagomez IS A BIG SISTER!!!!!! Everyone congratulate her and her family!!!!!! #CONGRATSSELENA!!!!” Demi tweeted.

10+ pictures inside of Demi Lovato and Simon Cowell at the auditions…