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Why is it so hot in the summer? Here's a few reasons why

1 of 25 Showtime

Mary Louise Parker, Weeds

2 of 25 HBO

Joe Manganiello, True Blood

3 of 25 Kim Kardashian

Kim Kardashian, Keeping Up with the Kardashians

4 of 25 HBO

Mehcad Brooks, Necessary Roughness

5 of 25 Alexander Tamargo/WireImage.com

Olivia Munn, The Newsroom

6 of 25 HBO

Anna Paquin, True Blood

7 of 25 TNT

Jesse Metcalfe, Dallas

8 of 25 Monty Brinton/Showtime/Landov

Hunter Parrish, Weeds

9 of 25 Michael Becker/Fox

Cat Deeley, So You Think You Can Dance

10 of 25 TNT

Josh Henderson, Dallas

11 of 25 Trae Patton/NBC

Jenny McCarthy, Love in the Wild

12 of 25 Justin Stephens/USA

Reshma Shetty, Royal Pains

13 of 25 Robert Ascroft/USA Network

Michael Ealy, Common Law

14 of 25 FX

Rose Byrne, Damages

15 of 25 Robert Ascroft/USA Network

Matt Bomer, White Collar

16 of 25 ABC Family/Mathieu Young

Shay Mitchell, Pretty Little Liars

17 of 25 USa Network

Piper Perabo, Covert Affairs

18 of 25 Virginia Sherwood/USA Network

Jeffrey Donovan, Burn Notice

19 of 25 HBO

Alexander Skarsgard, True Blood

20 of 25 NBC

Erica Durance, Saving Hope

21 of 25 ABC Family/Andrew Eccles

Derek Theler, Baby Daddy

22 of 25 James White/TNT

Noah Wyle, Falling Skies

23 of 25 ABC Family/Mathieu Young

Tyler Blackburn, Pretty Little Liars

24 of 25 TNT

Garcelle Beauvais-Nilon, Franklin & Bash

25 of 25 Justin Stephens/Bravo

Curtis Stone, Around the World in 80 Plates