You name the group/artitst

Disco Diva Donna Summer

Smokestack Lightning (now shamefully heard on a Viagra commercial, Oy!)

(The version on the commercial is Howlin' Wolf's original.  Yardbirds also correct.)

Heartbeat?  Several artists I can think of...do you mean Psychedelic Furs?

Feelin' Alright

I was thinking about Dave (Traffic) Mason.

Pointer Sisters

Feeling Good (and keep the time frame in mind.)

(My BAD!!!  The P. Sisters never did that song!  Although on one of their albums, they were dressed a little like "lady marmalades."  I give myself a demerit for not going with Patti LaBelle.)  

(Feeling Good, had Nina Simone in mind.  Think George Michael is too recent.  Covered lots tho'.)

Dave Clark Five

I Feel Fine   (Aha-ha-ha!)

Morris Albert

No More Lonely Nights

James Brown

Draggin' The Line (he feels fine!) 

The Partridge Family

Do Right Woman (Do Right Man)

Beastie Boys

Nasty Girl

Harry Nilsson

House Of Four Doors 

(It wrapped around another song, so if you also know what song was between the two parts, you get a bonus gold star!!!)

(The MB song comes before and after "Legend Of A Mind."  I wouldn't have remembered it either, but I was listening to my MP3 yesterday whilst getting some natural Vit. D.)

Steve Miller

Abacab

JulieH,  I can hear that tune as plain as day, but I'm blankin' on the artist.

Pilot

Strange Magic

Chicago

Sentimental Lady 

HINT: formerly with Fleetwood Mac; also had a hit with Ebony Eyes 

Tony Joe White (had to peek, but what an interesting story this song has. haha, always loved it! Never knew who the artist was, but remember it on the radio)

Cowgirl In The Sand