I have 19 out of the 20 answers correct.
Each time the page reloads they change position so i will try my best here...
Oasis (pond, palms, camel)
Erasure (ear, asia)
Righteous Brothers (chain, musical notes)
The Weather Girls (house, 2 females)
Simon and Garfunkel (bridge over troubled water)
Chemical Brothers (test tube dj's)
Black Lace (trainer lace)
The Carpenters (2 joiners/workmen)
Dollar ($ note)
Stevie Wonder and Paul McCartney (piano keys/ebony and ivory)
Pet Shop Boys (boys in pet shop)
Salt N Pepa (salt and pepper pots)
Cheeky Girls (hotpants)
Sonny and Cher (sun and chair)
White Stripes (zebra)
Olivia Newton John and John Travolta (sandy and danny from Grease)
The Proclaimers (500m signpost)
Chas and Dave (rabbit, rabbit)
Elton John and Kiki Dee (ton weight and car keys)
i'm stuck on the tent and wig one!!!!
Doh, edit that....wigwam minus wig = Wham !!