Is "over" emphasizing "in the UK"? What does "over" here mean?
When speaking about a location, "over" is used to emphasize the fact that the location is in a place away from the speaker. This expression is rather casual. You can generally understand "over in/at" to mean "in/at a place." Here, Lady Gaga has used this expression to say that Bradley is away, in the UK. Ex: My kids are over at my mom's house. (My kids are at my mom's house.) Ex: There is a sale going on over at the department store. (There is a sale going on at the department store.)