H.o.u.s.t.o.n. Rap Song?

Okay so I heard some song on the radio earlier and its driving me crazy because i cant find out what song it is.. i checked the website and tried to find theyre playlist but it wasnt posted... i only picked up bits and pieces of the lyrics but the song starts of with a piano playing and if i remember correctly its about houston and refers to houston as a girl throughout the song... in the chorus or it might have been just in the end.. but it spells out H-O-U-S-T-O-N... Does anyone happen to know what this song is called and who sings it?
thank you