Katherine Jenkins threatens to spill out of dress on stage as boyfriend Gethin Jones looks on

When Katherine Jenkins performed at Kenwood House, it wasn't just her powerful voice that wowed the crowd.

The Welsh singer looked stunning in a selection of low cut dresses which revealed her curvy figure.

The patriotic 28-year-old also made sure her outfit was complete by draping herself in her home country's flag for one of her classical performances, which was accompanied by the London Philharmonia Orchestra.

Patriotic: Katherine Jenkins drapes herself in a Welsh flag on stage at Kenwood House

The appreciative crowd included her boyfriend, Blue Peter presenter and Strictly Come Dancing star Gethin Jones, who watched from a deck chair at the outdoor venue.

Katherine was back on stage the following day in a striking canary yellow dress to take part in the official handover of the Beijing Olympic Games to London in front of the flag waving crowds on The Mall outside Buckingham Palace.

Quick change: Katherine belts out a classical number in a figure hugging satin dress

The crowd are amazing. They all seem so proud," she said after her performance.

"I've got caught up in the Olympic fever like everyone else, I've been watching it. I've lived in London for 10 years and I'm very excited and proud that we've got it coming here."

Support: Boyfriend Gethin Jones watches from a deck chair

She also sent congratulations to fellow countrywoman cyclist Nicole Cooke, who became the second Welsh woman ever to win an Olympic gold medal.

She said: "We're all so proud of you, you're going to get the biggest welcome home.

"It's been brilliant."

After her hectic weekend, Katherine is now preparing to go to Iraq to entertain the troops.

Olympic celebrations: The Welsh singer performs outside Buckingham Palace

Proud: The star said she is delighted the Olympics is coming to London