Samsung has invited fans around the world to view its Galaxy S4 launch event on 14 March.
Samsung enthusiasts can watch a livestream of the event - taking place at Radio City Music Hall - in New York's Times Square, starting at 19:00 EST (00:00 GMT). Those who are not in the Big Apple can tune in on YouTube.
"Be the first in the world to experience it!" the invite said.
Samsung sent out press invites for the event this week — a puzzle in the form of a piece of black cardboard that opens into a cube. Inside was a plastic card with a QR code, which, when scanned, took journalists to the unpacked2013.com site.
The Galaxy S4 is rumoured to have a 4.99in, 1080p screen, run an Exynos 5 eight-core processor, and include 2GB of RAM, a 13-megapixel rear camera, and a 2-megapixel front-facing shooter. Reports also point to the device running Android 4.2.2 Jelly Bean out of the box.
Samsung's flagship Galaxy S3 started hitting store shelves in May 2012, and quickly became one of the world's most popular smartphones, competing for first place with Apple's iPhone.
Samsung's tweet, posted just after midnight, has been retweeted almost 600 times, and earned 135 favorites in less than 12 hours.