Donna Summer?

Hi. I heard this song on the radio twice and I thought that radio dj mentioned D. Summer name with it, but I cannot find anything like that under her name. Anyway. The song is powerful and it sounds like one of the very first house songs. There is female vocal, something like "to be real, got to be real" something like that. I know it may sound stiupid, but I am sure that someone knows what that is. Thanks

Song is titled "To be Real" Big disco song even before my time by Cheryl Lynn.