SOLVED. Children’s Chapter Book - The series is about a girl with magic sneakers. In one of the books, she brings the magic shoes to a wedding and saves the day. Read in mid 2000s, but it was an older book.

[Alyssa]

I think the girl had wild curly red hair. She keeps her magic shoes in a shoebox under her bed. The book’s colors were pink and green.

[Alyssa]

SOLVED! It’s Wacky Wedding (The See Through Kid) by Elissa Snow.

[Rainbowheart]

Glad you found it!

Wacky Wedding for the link.