Jennifer Love Hewitt and Patrick Dempsey are the Sexiest Woman and Man on TV.

The 'Ghost Whisperer' beauty and 'Grey's Anatomy' actor each grace different covers of TV Guide magazine's Sexiest Stars issue, and Dempsey said the honor was "very flattering".

TV Guide writer Carol Dittbrenner claims it was the haircut Dempsey - who is nicknamed 'Dr. McDreamy' thanks to his role in the hospital drama - sports that secured him the top spot.

She laughed: "With Patrick Dempsey, he has a huge, thick head of hair and you just want to run your fingers through it!"

Love Hewitt's sexy success was not a surprise to her 'Ghost Whisperer' co-star David Conrad. He said: "In the three years that we've been filming, there's always a moment when I just go, 'Wow, that's a really beautiful woman.'"

Other celebrities who feature in the list include 'Desperate Housewives' star Eva Longoria Parker, 'Lost' hunk Josh Holloway and 'Heroes' beauty Hayden Panettiere.