Tom Daley makes first red carpet appearance with boyfriend Dustin Lance Black

Tom Daley and his boyfriend Dustin Lance Black made their first red carpet appearance together on Wednesday night.

The couple donned similar outfits as they joined stars including Elton John, Will Young, Grace Jones and Jack Whitehall at the Inaugural Battersea Power Station annual party in London.

Tom, 19, wore jeans, a denim shirt and a leather jacket while 39-year-old screenwriter Dustin also sported jeans and a blue shirt under a leather jacket.

Tom Daley and Dustin Lance Black

While Plymouth-born Tom and US-born Dustin have been spotted out together in both their native countries, this is the first time they have officially stepped out as a couple.

The appearance comes a month after Tom confirmed he is gay and not bisexual as he previously suggested in a YouTube video.

Despite saying that he still fancied girls in his coming out video last year, Tom declared "I am a gay man now" during an appearance on ITV2 show Celebrity Juice.

The Olympic diving champion also said that his relationship with director and producer Lance is "all good" at the moment.

Tom Daley and Dustin Lance Black

It was Tom's relationship with LGBT rights activist Lance that prompted him to come out in December 2013.

Tom released a YouTube video to his fans, which he circulated on Twitter with the caption: "Got something I need to say...not been an easy decision to make, hope you can support me!"

He began the five-and-a-half minute clip by saying: "Most of you are probably wondering why I'm doing this video. My life's been a bit of a rollercoaster to say the least.

Will Young

"In spring this year my life changed massively when I met someone, and they make me feel so happy, so safe and everything just feels great," he added, before revealing: "That someone is a guy.

"It did take me by surprise a little bit. It was always in the back of my head that something like that could happen," Tom went on. "But it wasn't until spring this year that something just clicked. It felt right and I thought 'Okay'. And my whole world changed there and then."

Elton John

Tom Daley: The childhood Olympic dream that came true

During his appearance on Celebrity Juice, Tom told presenters Keith Lemon, Holly Willoughby and Fearne Cotton that at the time he was "terrified" about revealing the news of his sexuality.