Vampires have always served as a wildly popular source of entertainment. Fiction about them dates back to the early 19th century and first truly immortalized (so to speak) by Bram Stoker in 1897.

They've been fascinating us for generations – who knows, maybe even your grandmom fantasized about Count Orlok (sincere apologies for the imagery) – and have been a steady presence in film for a century.

But is our lust for blood(suckers) now hitting a fever pitch? They're everywhere we turn – from megaplexes (we're in between 'Twilight' installments, with films like 'Daybreakers,' 'Buffy the Vampire Slayer' and 'Dark Shadows' to come) to art houses ('Let the Right One,' this week's release 'Thirst') and cable (this fall's 'Vampire Diaries') to premium cable ('True Blood'). Vampires have always served as a wildly popular source of entertainment. Fiction about them dates back to the early 19th century and first truly immortalized (so to speak) by Bram Stoker in 1897.

They've been fascinating us for generations – who knows, maybe even your grandmom fantasized about Count Orlok (sincere apologies for the imagery) – and have been a steady presence in film for a century.

But is our lust for blood(suckers) now hitting a fever pitch? They're everywhere we turn – from megaplexes (we're in between 'Twilight' installments, with films like 'Daybreakers,' 'Buffy the Vampire Slayer' and 'Dark Shadows' to come) to art houses ('Let the Right One In,' this week's release 'Thirst') and cable (this fall's 'Vampire Diaries') to premium cable ('True Blood').

They're on bookshelves and in newsstands -- including on the cover of the most recent Entertainment Weekly, which ranks the top 20 greatest vampires of all time.

But really, it's all about the sex appeal. A little while back, amidst 'Twilight' hysteria, we asked readers to vote on the sexiest vamps of all time. The results? Not entirely surprising.

The Hottest Female Vampires

5. Monica Bellucci, 'Bram Stoker's Dracula' (1992)
Who She Plays: Dracula's Bride
Why She Gets Our Blood Flowing: As one of Count Dracula's (Gary Oldman) three smokin'-hot brides -- apparently Drac is a polygamist -- she terrorizes Keanu Reeves and does a whole lot of writhing around topless. So, yeah, she's OK in our book.

4. Aaliyah, 'Queen of the Damned' (2002)
Who She Played: Queen Akash
Why She Gets Our Blood Flowing: The R&B star famously sang "Age Ain't Nuthin' but a Number," and in the case of vampires, that's actually true. The queen vamp first ruled in 4000 B.C., and looks just as fiiiiiine 6,000 years later.

3. Angie Everheart, 'Bordello of Blood' (1996)

Who She Plays: Lillith
Why She Gets Our Blood Flowing: All questions of quality aside, fiery redhead Everhart is a total knockout in this campy 'Tales From the Crypt' flick. And it says a lot to be able to stay sexy acting alongside Dennis Miller and the Coreys (Haim and Feldman).

2. Kate Beckinsale, 'Underworld' (2003)
Who She Played: Selene
Why She Gets Our Blood Flowing: As a vampire assassin, or "Death Dealer," she hunts down and kills Lycans (aka werewolves) and falls in love with a human (Scott Speedman), all while wearing impossibly tight black leather. That's what you call a triple threat.

1. Salma Hayek, 'From Dusk Till Dawn' (1996)
Who She Plays: Santanico Pandemonium
Why She Gets Our Blood Flowing: She's that rare breed of woman you want to take home to mom: a vampire erotic dancer with a taste for her customers' blood. Bonus points: Over-actor Quentin Tarantino is one of her early victims.

The Hottest Male Vampires

5. Stuart Townsend, 'Queen of the Damned' (2002)
Who He Played: Lestat de Lioncourt
Why He Gets Our Blood Flowing: Before Charlize Theron made Stuart Townsend her arm candy forever, Queen Akasha (Aaliyah) wanted him for her King and we can't say we blame her. As a modern-day rock god, he is by far the sexiest Lestat on film.

4. Antonio Banderas, 'Interview With the Vampire' (1994)
Who He Played: Armand
Why He Gets Our Blood Flowing: Even his pale, sun-starved complexion and long, flowing locks couldn't hide Banderas' brooding international hotness. Not just another vampire -- a European vampire! -- Banderas proved frightening with a pair of fangs.

3. Cam Gigandet, 'Twilight' (2008)
Who He Plays: James
Why He Gets Our Blood Flowing: You can have your sensitive vampires like Edward; some of us like 'em eeevil. Sure, James hunts humans for sport, but if you're having the blood drained from your body, there are worse things than looking at THAT face while you die.

2. Brad Pitt, 'Interview With the Vampire' (1994)
Who He Played: Louis de Pointe du Lac
Why He Gets Our Blood Flowing: Being a vampire isn't all fun and games: When Louis bites into a young girl's neck or tries to murder his mentor, he feels really bad about it. Aww, vampires are cute when they're conflicted. And when they look like Brad Pitt.

1. Robert Pattinson, 'Twilight' (2008)
Who He Played: Edward Cullen
Why He Gets Our Blood Flowing: Pattinson already gets fans asking him to bite them. Maybe it's the fact that the source material is a teen trilogy with a 'Harry Potter'-like following. Or maybe it's the fact that in 'Twilight,' Pattinson sucks us in with his dark and brooding boy-beauty.