Back in the fold for a second year, Australia set out to prove the success of Guy Sebastian was no fluke with X Factor winner Dami Im and a seriously competitive Sia-inspired power ballad that could take them all the way.
Estonia have made a virtue out of taking risks on the Eurovision stage in recent years, but despite a high-calibre songwriting team, Jüri Pootsmann's brooding 'Play' may well prove too alienating for casual viewers.
17 year-old former child star Frans beat out a host of hotly tipped Melodifestivalen veterans in his way to representing Sweden on home turf this May. Can he tear up the rulebook once again and bring Sweden a record-equalling seventh victory?
Say what you like about Azerbaijan, but their ability to deliver a ruthlessly effective Eurovision package is undeniable. Miracle by Samra presses all the buttons for fan favourite status, and it could well bring the contest back to Baku as well...
Having scored nul points on home turf last year, Austria emerge from the Eurovision winner's cycle with a lot to prove. Can a catchy French-language pop hit courtesy of 19 year old Zoë prove the country has what it takes to flourish without Conchita?
After three years out of Eurovision action, Bosnia & Herzegovina make a welcome return to the contest with an interesting clash of genres that tips a hat to both traditional and modern aspects of their rich musical landscape.
Spain opt for a change of pace for 2016, with an English-language piano house number that could be straight off a Jess Glynne album. But have they sacrificed too much personality in their quest for hit potential?
Ireland have ditched their annual train-wreck of a national selection and brought in a bona fide star for 2016. But can name power alone get Nicky Byrne's pedestrian 'Sunlight' to the finals?
Belgium's Laura Tesoro channels Bruno Mars and Fleur East on a high energy Eurovision entry that has charm to spare, but doesn't quite play to her vocal strengths.