Different hair styles trends for girls can vary widely based on factors like age, culture, and personal preferences. What’s considered the “most famous” or popular hairstyle for girls can change from year to year and may also depend on geographical location and current fashion trends. However, some classic and timeless hairstyles that have remained popular for girls over the years include:

1. Long and Straight: Long, straight hair has always been a classic and versatile choice. It can be worn sleek and smooth or styled with waves or curls for variation.
2. Bob Haircut: The bob is a timeless hairstyle that comes in various lengths and styles, such as the classic bob, long bob (lob), or asymmetrical bob.
3. Ponytail: A simple and practical hairstyle, the ponytail can be high, low, or in between. It’s a go-to option for girls of all ages, especially for active lifestyles.
4. Braids: Braided hairstyles offer numerous options, from simple three-strand braids to intricate fishtail, Dutch, or French braids. They are popular for both casual and formal occasions.
5. Pixie Cut: Short pixie cuts are known for their chic and edgy look. They can be a bold choice for girls who want to embrace a shorter style.
6. Messy Bun: The messy bun is a trendy and effortless hairstyle that can be dressed up or down. It’s great for keeping hair out of the face while maintaining a stylish appearance.
7. Curls and Waves: Loose curls and waves can add a touch of romance and elegance to any hairstyle. They can be achieved with curling irons, flat irons, or even overnight methods.
8. Half-Up, Half-Down: This style combines the best of both worlds, allowing hair to be both up and down. It’s versatile and can be customized with various accessories.
9. Top Knot: The top knot or high bun is a fashionable choice for girls who want a stylish updo. It’s often seen as a trendy and modern option.
10. Bangs: Whether it’s side-swept bangs, blunt bangs, or curtain bangs, adding bangs to a hairstyle can create a fresh and youthful look.

It’s important to remember that the most famous or popular short hair style can change over time, and individual preferences play a significant role in choosing a hairstyle. When deciding on a hairstyle, consider factors like face shape, hair type, and personal style to choose a look that suits you best. Additionally, consulting with a hairstylist can provide valuable guidance tailored to your specific needs and preferences.