Burj Khalifa with Smith's attempts to make the crown more slender. The building opened on 4 January 2010. The tower was designed by Skidmore, Owings and Merrill (SOM), which also designed the Willis Tower (formerly the Sears Tower) in Chicago and the One World Trade Center in New York City. Burj Khalifa uses the bundled tube design of the Willis Tower, invented by Fazlur Rahman Khan. Due to its tubular system, proportionally only half the amount of steel was used in the construction, compared to the Empire State Building. Khan's contributions to the design of tall buildings have had a profound impact
Formerly Known Campbell, Thi'sl, Eshon Burgundy, Sho Baraka, Swoope, Rich Perez, and R-Swift, as well as a comic appearance of professional golfer Bubba Watson. Production was provided by Mineo himself along with Skrip, Alex Medina, and other, uncredited producers such as Tyshane. "Formerly Known" was received positively by critics. Michael Wildes of "The Christian Manifesto" scored the mixtape four-point-five out of five and called it "one of the best albums" of the year. Jerome Hill of "Jam the Hype Radio" was also favorable to the album, stating that "Andy Mineo keeps us flowing with this project with sounds like 'whoop,' showing us