Don't have much to add that hasn't been said. I'm in a 4-piece female-fronted dance/party band. Singer plays just some very minimal keys, other than that it's drums, bass, and guitar - no tracks. We do everything from AC/DC to Justin Timberlake to Carrie Underwood etc. Just played a $$$ wedding at a vineyard/winery in MN which was the most money I've ever made at a single gig. Then this Thursday we are playing "Throttle Thursday" at a local Harley dealership. Saturday at a local dance club that caters mostly to an older crowd. I'm mid 50's. I make it a point to listen to the modern pop and country stuff. I can find something to like about pretty much ANY song. I sing a few "bro country" songs, plus "Shut up and Dance" - mainly to give our singer a break. Also the ridiculous "Keep Your Hands to Yourself" which never fails to fill the dance floor and have the whole crowd singing along.
Random thoughts: I really dig the concept of DNCE - almost no keyboard but good danceable grooves. We do "Cake by the Ocean" and thought about "Toothbrush" too. We had to learn the old 'Jump Around" by House of Pain for another wedding recently - and it has been KILLING it at all of our gigs. Singer does the rap - no keyboard. I just play the bass riff for the whole song. Guitarist managed to get that crazy "screech" sound (a sampled sax maybe?) and just plays a silly little major riff that is way in the background, piano maybe? We also used to cover "Turn Down for What" which went over well. We're thinking about having me sing "Handclap" by Fitz and the Tantrums. I considered those guys neo-soul, but they have been doing more pop/dance stuff. Will have to have guitar play the sax lines though. We've done some Maroon 5 but it seems to have a pretty short half-life. "Can't feel my Face" has been kinda flopping for us lately too - we dropped it.
If I could play whatever I wanted - it would probably be neo-soul with some vintage soul thrown in. "Neo" like - Fitz and the Tantrums, Eli "Paperboy" Reed, Nick Waterhouse, Vintage Trouble, older Aloe Blacc. Also dig some of the new rock stuff like Rival Sons, Royal Blood. Just to really f*** with people throw in some alt country like Dale Watson and some weird stuff like Southern Culture on the Skids.
And most of the usual audiences would be going "Huh?" right before they walked out