Music streaming server Spotify has taken a page out of Google+'s book by not allowing just anyone to sign up for its services. Instead Spotify is using an invite-only system that has already created a hightened demand for the product.

If you still haven't managed to score a Spotify invite, here are some ways around just waiting for the company to respond to your invite request.

The easiest way to get an invite is to go through a second-party system that has a sponsorship deal with Spotify. One of the easiest to do this with is Coca-Cola. Go to this link on Coca-Cola's website, put in your email address, and you should get an invite in your email within about five minutes.

Another website that works well is Klout (click link). Klout, a service that measures a user's influence in social media, has a really easy way for you to get Spotify. All you have to do is sign up with a Klout account using either your Facebook or Twitter login, and the company will get you a Spotify activation code.

The whole process takes about a minute and even though you might be hesitant to have to sign-up a website, Klout has been known to give away laptops and concert tickets in the past.

Both of those steps are incredibly easy, but if you are still looking for other ways, one is through celebrity Twitter accounts. Brittney Spears and Ashton Kuthcher have both given away Spotify invites to followers. It looks like both have run out of their set aside invites but keep an eye on their Twitter accounts in the future for more possible invites.

And finally if you don't want to deal with any of that hassle, though who wouldn't spend a minute to get a free invite, you can always just sign up for Spotify's unlimited service for $4.99 a month or premium for $9.99. Spotify will eventually make all users pay for the music, but is allowing users who got invites to test out the service for the next six months for free.