VIDEO: Andrew Chapelle, the Schuyler Sisters, and the HAMILTON Cast Wish Lin-Manuel Miranda 'Happy Birthday'

Lin-Manuel Miranda's birthday celebration continues!

Under the direction of Alexander Hamilton alternate Javier Munoz, the HAMILTON cast sang "Happy Birthday" in shifts. Below, watch as Andrew Chapelle's private well-wishes get crashed by Betsy Struxness and a group of ensemble members, plus the Schuyler Sisters deliver their own rendition, but not everyone got the memo.

From the creative team behind the Tony Award-winning In The Heights comes a wildly inventive new musical about the scrappy young immigrant who forever changed America: Alexander Hamilton. Tony and Grammy Award winnerLin-Manuel Miranda wields his pen and takes the stage as the unlikely founding father determined to make his mark on a new nation as hungry and ambitious as he is.

The new musical Hamilton has book, music and lyrics by Tony and Grammy Award-winning composerLin-Manuel Miranda, who also plays the title role. The musical is directed by Thomas Kail, with choreography by Andy Blankenbuehler and music direction and orchestrations by Alex Lacamoire. Hamilton is inspired by Ron Chernow's biography "Alexander Hamilton."

The cast of Hamilton is comprised of Lin-Manuel Miranda (Alexander Hamilton), Daveed Diggs(Marquis De Lafayette,Thomas Jefferson), Renée Elise Goldsberry (Angelica Schuyler),Christopher Jackson (George Washington),Jonathan Groff (King George), Jasmine Cephas Jones (Peggy Schuyler, Maria Reynolds), Javier Muñoz (Hamilton alternate), Okieriete Onaodowan(Hercules Mulligan, James Madison), Leslie Odom, Jr. (Aaron Burr),Anthony Ramos(John Laurens, PhilipHamilton) and Phillipa Soo (Eliza Hamilton).

From bastard orphan to Washington's right hand man, rebel to war hero, loving husband caught in the country's first sex scandal to Treasury head who made an untrusting world believe in the American economy, Hamilton is an exploration of a political mastermind. George Washington,Thomas Jefferson, Eliza Hamilton, and lifelongHamiltonfriend and foe,Aaron Burr, all attend this revolutionary tale of America's fiery past told through the sounds of the ever-changing nation we've become. Tony Award nominee Thomas Kail directs this new musical about taking your shot, speaking your mind, and turning the world upside down.