This is Matt Bellamy from Muse, riding on public transportation.
I won't bore you with the details, but this is what has changed about music over the last few decades. Matt Bellamy is, arguably, one of the biggest rock stars on the planet. His band is huge--huge--in Britain. He is instantly recognizable in public places.
In the 1970s, Bellamy would be riding in a limo, or he would be traveling in the equivalent of a tank. Muse are at least as big as The Police were in the 1970s, if not astronomically more so, and they had to travel from gig to gig with assistance. Fans used to try to tear them apart.
In the 1980s and 90s, Bellamy would have been able to drive himself or ride with others as the subsiding crushes of fans gave way to a more refined form of hero worship. The only problem he would likely have faced would have been all the free cocaine shoved into his hands.
In the 2000s and beyond, we're all self-aware to the point of being ridiculous. Here he is, taking selfies on the way into the tube, and people think this is interesting. In many ways it is--music stars are now so far down the food chain, they can go back to having regular lives.