Who sings that song that goes "they know who i am ayo"?

I don’t know the song you’re talking about, but I figure out artists all the time by googling whatever lyrics I know (sometimes in quotes if I am really sure) + the word “lyrics”. You might try picking out some more unique words from the song to use for your query (I got a country song, and different songs by the group called Ayo when I tried to search using the line you offered).
Alternately, call the radio station and ask next time you hear it.
Good luck!

you told a “ayo” what i know is justin&50 cent ayo technology