I was trying to find out who sing this song name Angel and I was also trying to figure out a song that patti labelle and ronald isley sings.

Patti Labelle and Ron Isley sang a duet together called "Gotta Go Solo."
That information is at the link below. When you get to the web page,
Scroll down until you get to the 2000's (this decade). This info is about
Three inches below the picture of her with the wide-brimmed, black hat on, in the
3rd paragraph under 2000's, toward the right side of the page.

Patti LaBelle - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Patti_LaBelle)

There were a LOT of songs with the title, "Angel," and some had other
Words in the title in addition to angel. If you are referring to the one
By a male singer with only "Angel" in the title, there's one by Lionel Ritchie,
Nicole's dad, at the link below. Maybe you'll be able to tell by the lyrics
Shown at the link whether it's the one you're looking for:

Ritchie Lionel - Angel LYRICS (http://www.lyricsdownload.com/ritchie-lionel-angel-lyrics.html)

Aerosmith and Jon Secada both have songs called "Angel"

Those are the first and only two I can think of with that exact title.

Give me more details about the song if possible.

"Angel" by Amanda Perez

The artist Amy Studt also recorded "Angel," with the same lyrics. In my mind,
I remember a song quite a few years ago with a Black female singing a song
That started "Angel, An-ge-el-el-el," with a voice similar to Toni Braxton's,
But for the life of me, I can't remember who it was. Here's a link to the
One by Amy Studt:

Amy Studt - Angel LYRICS (http://www.lyricsdownload.com/amy-studt-angel-lyrics.html)