Robbie Williams has revealed his new teeth are the "secret" to his youthful appearance.
The 50-year-old singer appeared on Australian chat show The Project on Monday and was quizzed on how he stays so fresh-faced.
As Robbie flashed a dazzling white smile, he explained fixing his teeth has felt him feeling better than ever.
"My secret is new teeth. I smile down. I smirk smile. But I smirk smile because I had yellow nubs," the British star explained. "Yellowed because of amphetamines and raver's abuse."
Robbie, who turns 51 this week, went on to reveal that the damage done to his teeth due to years of drug abuse had left him reluctant to smile in public.
"I didn't open my mouth at all. And it led to this sort of smirk-y thing," he added, before opening his mouth to show off perfectly aligned while teeth, "Now I'm like this."
Last year, the Better Man star confirmed via Instagram that he undergone extensive dental work
Robbie has now revealed he "loves" his new smile and was "surprised" by how quickly the transformation happened.
The star has made no secret of his failure to care for his teeth, after his well-documented partying took its toll.
"I absolutely abused them," he previously admitted. "Opening bottles with them. Espresso staining them. Rubbing coke on them. Not brushing them properly. Clenching them for three whole decades."
Over the weekend, Robbie claimed the Best Film prize at the AACTA Awards for his biopic Better Man.
As he claimed the accolade, the former Take That star cheekily thanked his "lower than average sized-penis".
During the singer's appearance on The Project, show host Rove McManus joked about Robbie's comments as he thanked the Angels star for tackling the sensitive subject.
A deadpan Robbie - who raises four children with his wife Ayda Field - replied in response, "It's fine. It's filled four prams."