Yes, Parliament has absolute and unlimited power (except binding future Parliaments, and maybe arguably some matters relating to Scotland): https://en.wikipedia.org/wiki/Parliamentary_sovereignty_in_t...

(not a lawyer)

Indeed which is why "taking back sovereignty" as an argument by the pro-Brexit folks was a bit disingenuous (if I'm been kind).

It would also require us leaving a whole bunch of international treaties though since "Nationalising a pop singer" kinda breaches a few of them.