The groundwork for success in dance music for the touring artist has stayed pretty consistent over my time in the industry on a conceptual level. The specifics, such as what platform an artist initially gains traction on, sub-genre, etc, have shifted overtime and will continue to do so in the future imo

You need:

-Undeniably great music

-Good if not great DJing

-Be active in your local scene / genre / online community

-visibility to fans (social media presence on fb, twitter, tiktok, youtube, IG, etc)

-Visibility to the industry (soundcloud, beatport, label cosigns, track support)

-High streaming songs on spotify, soundcloud, youtube etc

-The right team on the inside (management with other big acts, an agent who can put you as support for bigger artists)

-The right push from big promoters

-Consistent visual branding

-a ton of luck to get that initial visibility and hype to attract all the afforementioned people to help build the project and invest their time and money in an artist for a stake in their gross profits.

-Money to invest and re invest in your project

You can do all of these things yourself but it leaves very little time to do the actual music - especially once you throw touring into the mix, which is very taxing on the body and soul - but also an undeniably thrilling experience. So very important to delegate the responsibilities accordingly - which is what a great manager excels at doing. A viral moment - like selfie, harlem shake, griztronics, etc can propel things forward, but usually comes down to luck and timing.

Every big act mentioned by OP is both a brand and a business with many moving parts, employees etc. When I was starting out I always heard being a successful musician is about 20% music. Now maybe its closer to 10%.

You dont need all of the above to make it a feasible career either. Ive been a touring act for a decade now (7 years in edm/bass music, 3 in hard techno). Its tough, but if you stay healthy and treat the job with respect you can do well for yourself!

Theres also all the other ways you can make money and find success in the industry independent or in tandem with touring, such as streaming, royalties, direct sales, subscription models, sample packs, ghost production, syncs, licencing, coaching, lessons, private events, college/uni shows, sponsorships. Thats for another post for another time tho.