Well, the simplest definition of Bill Kaulitz, is one HOT male singer for German band Tokio Hotel. ;

Singer of German band Tokio Hotel <3. born september 1st 1989 and is a twin with his brother tom kaulitz (who is 10 minutes older than bill). Dispite that fact that bill is younger, he still is the boss of tom. no matter what :D

I say you shuld check out Tokio Hotel, their music is great, lyrics and all.

The lead singer from German Band Tokio Hotel. For most people who are wondering yes he is a guy and yes he is STRAIGHT!!!

This 20 year old singer is probably the hottest thing you can ever see. That is next to his twin brother Tom Kaulitz. Even though they are twins they have very different styles so it is very easy to tell them apart.

Some fans will just abbreviate his name with "BK" instead of typing it out.

And they will come up with cute saying like " BK- Bill Kaulitz! Have it your way"

The sexy hexy guitarist for the German band Tokio Hotel that won the 2009 MTV EMA award for Best Group.

Famous for his attire, laidback attitude about sex (though he is now on the lookout for love), endless supply of sex jokes, and being ten minutes older than TH's vocalist, Bill Kaulitz. Some of Tom's other claims to fame include singing the harmony at the end of Monsoon (fifty seconds that has lead the TH fanbase to call it the Tom chorus), saying "sexy hexy" in one of the TH TV videos, humping his flying-V during concerts, and slapping one of the veiled TH stalkers while telling her to stay away from him, the band, and the Kaulitz family. He backup sings "raise your hands together” in the chorus of Raise Your Hands in both versions, along with Georg Listing.

Despite being a sex-obsessed playboy, Tom’s a pretty cool guitarist--though he doesn't know the first thing about reading music (he taught himself to pick out chords). His fanbase is made up of people who dream that they can change Tom from the luster that he identifies as, to a lover.

He has a lip ring, pierced ears, and wears baggy clothing. He used to have dreadlocks, but now has black cornrows. (Wanksta/wigger.)

TH's latest album Humanoid, has reminded fans that he's super-sexy hexy Tom Kaulitz. Thousands hope to be the one to change him. Change may be on Tom's current agenda, but fame and fortune are definitely at the forefront--he's a star, and he does what he wants.

Singer from the band Tokio hotel (German band). He wears make-up,but it's hot. Born September 1, 1989. He is 10 minutes younger than his twin brother Tom Kaulitz. Neither of them have middle names. Bill is 6 ft. 2 inches. His favorite drink is peppermint tea(he says it is good for his voice). His favorite food is pasta. The first thing he notices about a girl is her hands. Also nice curves and a butt, she also has to be spontanious.

The most beautiful MAN known to earth. HE has the best style and looks in the universe. HE is in a ALL BOY German rock band and is the lead singer of Tokio Hotel and also the sweetest MAN ever.

Lead singer of Tokio Hotel, an all boy German band. And I'm sorry to all you Tokio Hotel haters, but they have extremely original music, and it sends shivers up my spine like a good song always does. That's how you know whether a song's good or not. And his lyrics are amazing. He's my inspiration form my song writing, and I love his and his band's music. All four together are actually just miracles and music prodigies. Nothing Like My Chemical Romance.

TOKIO HOTEL ARE AMAZING

And by the way, I'm no poser. I'm not some sad little girl obsessed with him for his looks/ I like him for his talent. Which is real ^^