Are you gonna be the one who saves lives?

Barry McMahon is an Oasis superfan, but as a plasma donor he's just as mad for it.

As the Gallagher brothers prepare to rock Murrayfield this summer, teacher Barry is a Rock 'n' Roll Star at our Glasgow Donor Centre.

Now he's urging all of Scotland to roll their sleeves up before they Roll With It.

Barry from Motherwell said, 'My first blood donation was at college when Oasis were at their peak. I kept it up for a while but then fell away.

'That changed when my wife gave birth to our first child Isabelle. When you're in a maternity room and a midwife hits a button and about ten people rush in, you think, 'What can I do?'

'It sparked a thought - I need to get back to donating.

'I must have got to about 30 donations when one of the nurses said, 'Have you ever tried giving plasma?' I thought, yeah, fine, I'll try it.

'They invited me to sit and watch someone donating. It's not that different from giving blood - it takes a wee bit longer, you get a couple more snacks and checks, and then you settle into a four or five-week cycle.

'Every time I come in, I've got a little ritual. I visit my favourite record shop around the corner afterwards. I get tea cakes, snacks, juice, and talk to some of the loveliest nurses you'll ever meet.'

Barry's passion for Oasis runs just as deep as his passion for saving lives, Little by Little.

He added, 'I was in fifth year at high school the first time I saw them live in Edinburgh. I knew this was my band. Like my dad had The Beatles or The Stones - I've got Noel and Liam. I've followed them ever since.'

Once you understand what blood, plasma and platelet donations do, you realise these guys are the rock and roll stars. Barry McMahon

'I'm part of a Facebook group of superfans, where we share memorabilia, signed records, and stories.”

But for Barry, the real rock stars are the donors. Now 46, he has set a personal goal of 46 donations—and he’s not stopping there.

He said, 'Once you understand what blood, plasma and platelet donations do - you realise these guys are the rock and roll stars.

'It's only when you experience it physically that you realise how little is involved, and how big a difference it makes to someone you'll never meet.

'There’s a kind of euphoria - a positive feeling of doing something good.'

• Some Might Say you could be a true hero like Barry. If that's the case, Definitely Maybe consider becoming a plasma donor.