GRIMES’ BABES NAMED X & Y

Who knew?! GRIMES, the 34-year-old singer born Claire Boucher, secretly got back together with billionaire Tesla founder boyfriend ELON MUSK, 50, had a second baby via surrogate, then broke up anew with no one the wiser.

But it ain’t necessarily over.

The esoteric pair enjoy an unusual “fluid” relationship. “We just need to be free,” she maintains, explaining: “We live in separate houses. We’re best friends. We see each other all the time. We just have our own thing going on, and I don’t expect other people to understand it.” Meanwhile, they seem over the moon for their newest little space cadet born in December, daughter EXA DARK SIDERAEL. Called “Y,” the infant joins adorable big bro X AE A-XII, 2, called “X.” All we can say is WTF?!