Caroline Wozniacki lived up to her nickname of 'Little Miss Sunshine' when she lit up the US Masters, caddying for boyfriend Rory McIlroy in the traditional par-three contest.
With Graeme McDowell's fiancee Kristin Stape also donning the famous white boilersuit, Wozniacki made a little bit of Masters history by becoming the first caddie to sign autographs at Augusta National.
As McIlroy happily signed away for fans, 'Wozza' followed behind doing the same -- a first for the famously conservative and ultra-exclusive Georgia club -- flashing a ring that sparked false engagement rumours yet again.
"I had a good deal with Rory and get a really good pay cheque out of this," Wozniacki joked on TV. "I even gave him a special price."
And McIlroy, who is second favourite for the Masters behind Tiger Woods, said: "It's very special. Caroline had the opportunity to come last year but it didn't quite work out in the end.
"I wanted her to come to Augusta and come to the Masters to see what it's all about. It's great that she's here this week. It makes this afternoon special, that she can be out here with me."
One of world sport's power couples, alongside Woods and alpine skier Lindsey Vonn, McIlroy and Wozniacki had the 'Twitterverse' chattering away again when she flashed a sparkler on her left hand.
Speculation grew that McIlroy had secretly popped the question but it was the same diamond ring that caused a furore when she was spotted with it in Australia last December.
Danish women traditionally wear engagement and wedding rings on their right hands, and she quickly moved to quell the speculation at the time.
"It was a Christmas present and it fits on this finger and I put it on, and all of a sudden I hear that I'm engaged. But I'm not," she said late last year.
"So, yeah, it's already twice we've had to shut down engagement rumours. Don't worry, we will let you know if that time happens!"
Wozniacki was criticised for comparing the Masters to Wimbledon but stepped back from those comments as she set off with McIlroy's clubs last night.
"Obviously this is a very special tournament," she said. "It has so many traditions. In many ways it's similar to Wimbledon, but in many ways it's also different.
"Hopefully, he won't give me too many looks for wrong clubs."
Players traditionally invite friends or their children to caddie in the par-three contest.