Message said "hey lexi some girl is talking about you" and the link takes you to an app on the App Store. I've seen a couple more messages floating around that came from a different number but was the same concept.
It did the same to me it said " Yo Olivia a girl was talking about you on ..." then it would have the link to the app. I think they got the name from my insta or one of my other apps. Cuz I used to use y0.0livia as my username a lot and, it's pretty similar to how they spelt it.