INFINITE's US leg of their 'One Great Step' first world tour is only a handful of weeks away, and already fans on the West Coast have been buying up tickets since they went on sale Saturday morning.

Those planning on attending the East Coast shows in either Fairfax, Virginia or New York City will have their opportunity to purchase tickets starting Tuesday, September 17 at 4:00PM EST.

The performances will be at the Patriot Center and the Manhattan Center's Hammerstein Ballroom, respectively, and both concerts will begin at 8:00PM.

For the highly anticipated concerts in Los Angeles and San Jose, some sections have already been sold out, namely the places where fans might have the opportunity to reach out and touch one of the idols - general admission.

At last look, there were still a few of these tickets floating around here and there, but they are not likely to last much longer, so if you are interested in joining the group of ultra-fans screaming and jumping around close up to the stage, get on Ticketmaster and reserve your tickets as soon as possible!

For those of you more inclined to sit during shows, there are still seats available as well, but at least for the LA performance, the $50 tickets have been sold out.

All tickets for all shows range in price from $50 - $180 and can be found through the Ticketmaster website. In the case of Los Angeles seats, fans will be redirected to the AXS website to purchase actual seats.

One Great Step is INFINITE's first world tour and has already taken them to many places around the world including Hong Kong and Indonesia with shows in Japan, China, and other places around southeast Asia planned before the group heads westward to America for a week of performances.

Following the US leg, INFINITE is scheduled for concerts in South America, Europe, and the Middle East.

Have you bought tickets yet for INFINITE's One Great Step first world tour or are you planning to get seats for the East Coast shows when they go on sale Tuesday? Let us know your plans in the comments area below!