Standout Halloween costumes from Harry Styles, Lizzo, Pink, Katy Perry and more

Harry Styles was one of the many stars who showed off an epic Halloween costume this year.

The musician dressed up as Dorothy from "The Wizard of Oz" on Saturday, while performing the first of his two "Harryween" shows at New York's Madison Square Garden.

Styles wore a short-sleeve blue and white checkered dress with red tights, a matching hair bow and, of course, the sparkly ruby red shoes. He also wore makeup to match and carried around a basket that contained a stuffed version of Toto.

The "Watermelon Sugar" singer's band also joined him, dressing up as the Cowardly Lion, the Glenda the Good Witch, the Tin Man, the Wicked Witch of the West, and various other characters from the 1939 film.

Lizzo also went all out for the holiday, donning several costumes over the weekend. She fully transformed into Baby Yoda from "The Mandalorian" for the first night of celebrations, the doll from "Squid Game" for her next costume and finally Dorothea from the 1992 animated comedy, "Bébé's Kids."

Ciara, who usually shows off several impressive looks for the holiday, channeled late icon Selena for her first costume and transformed into TLC for her second.

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Check out some more standout costumes from stars below.

Reese Witherspoon

Taylor Swift

Yara Shahidi

Cardi B and her daughter Kulture

Shawn Mendes and Camila Cabello

Pink and her family

Thomas Rhett and his family

Heidi Klum

Joe Jonas, Sophie Turner and Olivia DeJonge

Mindy Kaling

Bindi Irwin and her family

Luke Bryan and his wife Caroline

Katy Perry and Orlando Bloom