Justin Timberlake feels 'so far, so great' about Jessica Biel

Justin Timberlake has opened up about his relationship with Jessica Biel, insisting that their romance is going great.

In a recent interview with Barbara Walters, the Sexy Back singer said that so far, he was feeling great about being with the actress.

"So far, so great!" Usmagazine.com quoted him, as telling Walters.

"Do you think it will last?" Walters quizzed Timberlake, 26, on her annual 10 Most Fascinating People special.

"Well, I'll work on that!" he said.

Meanwhile the singer has warned rival heartthrobs Brad Pitt and George Clooney that he is the sexiest man in the world.

The pop star-turned-actor was recently named King of Sex by Rolling Stone magazine, and he claims that it trumps Clooney and Pitt's poll-topping achievements.