Justin Timberlake told Ellen DeGeneres that Jessica Biel is "the best wife in the world." Credit: Michael Rozman

Justin Timberlake definitely knows a good thing when he sees one! The "Mirrors" crooner was feeling a bit under the weather during an appearance on The Ellen DeGeneres Show (set to air Monday, Sept. 30), but said wife Jessica Biel had been a fantastic help at home.

"I have the best wife in the world," he gushed about Biel, 31. "She's been great this week."

Timberlake, 32, added that he can get "pretty cranky" when he's feeling sick, but admitted that, on the upside, "it does get a lot of sympathy!"

Just last week, the couple, who tied the knot in October 2012, showed up on the red carpet for the Las Vegas premiere of his film Runner, Runner, in matching tuxedo jackets, white shirts and fitted trousers.

And earlier this month, the usually low-key pair exchanged a rare bit of PDA at the U.S. Open on Monday, Sept. 9.

"It's nice to marry your best friend. It suits me," Timberlake told DeGeneres during a previous talk show appearance in April 2013. "Every once in a while I can catch a glimpse of her when she doesn't see me looking, and I have this moment where I'm like, 'If you never make a good decision … if you only make bad decisions for the rest of your life. You made one really good decision.'"