The venue hosts regular live music nights which have previously seen the likes of ITV’s Starstruck winner singer Rachael Hawnt, and an Elvis tribute the night before.
Alyssa’s performance was her final show until October and came just four days before setting off on her season in Mykonos.
She said: ‘I’ve gone out with a bang that’s for sure.
‘I loved it, when I woke up on the bus from Soho I looked out the window and thought I was in Dubai, because I saw Spinnaker Tower!’
Alyssa, 27, has been performing her all-singing all-dancing drag shows for eight years and has performed everywhere from London to New York, Vegas, Miami, Milan, Mykonos and more.
‘Drag brunches have taken off now but I like it when they’re a bit more intimate like this, it’s something a bit different,’ she added.
The evening saw Alyssa give a dazzling performance featuring glitzy costumes, sing-alongs and even getting everyone to their feet for a conga line.
Joel Wheeler is company operations director at the Marmion Family, and organiser of the event.
He said: ‘The reaction was fabulous, the event was so successful that we will be bringing them to Portsmouth every month, to encourage everyone to be themselves no matter what.’
‘It’s important to show Portsmouth great entertainment can also educate.
‘I want people to understand diversity, to come enjoy and have fun. Everyone had a great time, they loved it,’ he added.
Guests also enjoyed a two-course Italian meal with bottomless drinks.
Zoe Adams, from Waterlooville, attended the event – her first ever drag show – along with friends.
She said: ‘It was so much fun, I’ve never seen drag before, I would definitely come again.
‘It was such a good atmosphere, I don’t think you’ve got anywhere else in Portsmouth like this,’ she added.