Demi Lovato had two formal events this week, and she wore really amazing outfits to both of them.

First, she had the Eco-Casino Party on Monday, which she attended with stars like actress Zooey Deschanel and her X Factor co-judge L.A. Reid. Demi chose a pretty tan dress with sparkly details and a flared school. She finished off the look with big black heels and large earrings.

Then, she and her fellow X Factor judges were honored with a handprint ceremony at the Chinese Theater in Hollywood. The biggest stars are invited to permanently leave their handprints in the pavement outside the theater.

For the ceremony, Demi wore a black dress with a cinched in waist and an embellished top. She matched her red lipstick to the jewels, and added some sparkly earrings.

It sounds like Demi's had a really exciting week! Which one of her outfits do you like better?

Source: Just Jared (1, 2)