Creating a Barbie-themed playlist can be a lot of fun. Here are some suggestions for songs that would fit perfectly:

1. "Barbie Girl" by Aqua
2. "Life in the Dreamhouse" - Barbie
3. "Here I Am / Princesses Just Want to Have Fun" - Barbie: The Princess & The Popstar
4. "Two Voices, One Song" - Barbie and The Diamond Castle
5. "Shine" - Barbie and The 12 Dancing Princesses
6. "I Need to Know" - Barbie as The Island Princess
7. "You Can Tell She's A Princess" - Barbie: A Fashion Fairytale
8. "Connected" - Barbie and The Diamond Castle
9. "I Am a Girl Like You" - Barbie as The Princess and the Pauper
10. "The Wish I Wish Tonight" - Barbie: A Perfect Christmas
11. "On Top of the World" - Barbie: Princess Charm School
12. "Believe" - Barbie and The Magic of Pegasus
13. "Keep on Dancing" - Barbie in The Pink Shoes
14. "Anything is Possible" - Barbie
15. "Treasure" - Barbie and The Secret Door
16. "Live in the Moment" - Barbie: Spy Squad
17. "We've Got Magic" - Barbie and The Magic of Pegasus
18. "If You Love Me for Me" - Barbie as The Princess and the Pauper
19. "Light Up the World" - Barbie: Princess Adventure

Remember, the best playlist is one that you enjoy. So feel free to add or remove songs as you see fit!