It could be any of his songs really, depending on the day, but today it’s Could You, just for the insistent guitar riff and the ooh ooh oohs peppered throughout.
Everyone goes through a reggae phase, don’t they? I’ve had more than a few: I remember back in the day I used to go to reggae shows with Marie Johns, a friend of my sister, as she was really into reggae and needed someone to go there with. We saw UB40 (don’t give me that: One in Ten and Food For Thought were great) and Ziggy Marley, because Bob was already gone and we figured it was the nearest we were going to get (and sadly Tomorrow People really wasn’t that near to the immortal Bob). Even though we knew it probably wasn’t the greatest show, we (and all of the crowd) were determined to have fun: no one even blinked at a tiny little white girl and a skinny ginger kid pretending to skank and sing along to everything.
But the best moment was when he played his dad’s songs, of course, with that huge, beatific face smiling down on us all from the backdrop. https://www.youtube.com/watch?v=sL_BcaI0i0w