Celebrities are always on our radar. We pay attention to what they wear, what they say, and what they do. Because they get so much of our attention, we think we really know them – then suddenly we discover weird truths about them that throw us off.

Cause you can never really know someone whom you’ve never spoken to or even seen in person.

Here are some facts about some of your favorite celebrities.

10. Elvis was blonde.

The artist had to dye his hair black frequently so he could keep his signature look. His stylist later confessed to dutifully helping the star keep his hair healthy, including using jojoba oil, shampooing his hair, and assisting with his hairstyles.

And the dying, that too.

9. Kesha got her big break by breaking into Prince’s house.

The now-star was struggling to make it in the music industry, so she trespassed into the legend’s home to plant her demo tape. Prince got the tape, liked what her heard, and the rest is history.

8. David Bowie’s eyes were only sort of two colors.

Okay, not exactly. Bowie had two perfectly blue eyes. He merely looked like he had one black and one blue eye because he got into a fight as a teenager that resulted in one of his eyes becoming permanently dilated. This gave the appearance of having one black eye, and one blue one.

7. Beyoncé has a perfume allergy.

The star has her own perfume, but she can’t actually use it. It’s an open secret that she’s allergic to perfume.

6. Taylor Swift once modeled for Abercrombie and Fitch.

The star appeared in the brand’s catalog in 2003, well before she got famous. Other stars that modeled for the clothing brand before they hit it big: Channing Tatum, Jennifer Lawrence, Penn Badgley, and Emma Roberts.

5. Adele isn’t allowed to tweet.

The star tweeted while under the influence a few times (drunk twitter, never a good idea), so her management put a stop her tweeting. Adele has to get approval from two people before using her account.

4. Enya was the original choice to compose for Titanic.

Director James Cameron originally wanted Enya to compose music for Titanic. Later, the star revealed that she didn’t accept the gig because she prefers to work on her own, and she would have had to work with others to make the score.

3. The Beatles’ “Yesterday” was originally about eggs.

Paul McCartney said the song appeared in his dreams. He didn’t want to forget the melody, so he improvised some lyrics about scrambled eggs to keep it fresh in his mind.

2. Jon Bon Jovi has an inspirational restaurant.

Soul Kitchen in New Jersey features delicious meals, but the rockstar makes sure everyone can enjoy the food. If you don’t have enough money for the menu price, you can volunteer in the kitchen or pay what you can.

1. Martin Luther King Jr. has more Grammys than Katy Perry.

And so does former President Barack Obama. The Perry has gotten 13 Grammy nominations but hasn’t won one yet.

What did you think? Which of these celebrity facts surprised you the most? We want to know.