Jack Dorsey fashion design. As the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue – which, as of 2008, Twitter was not designed to earn. Dorsey described the commercial use of Twitter and its API as two things that could lead to paid features. He describes his three guiding principles, which he says are shared by the company, as simplicity, constraint and craftsmanship. On October 16, 2008, Williams took over the role of CEO, while Dorsey became chairman of the board. On March 28, 2011, Dorsey returned to Twitter as Executive
Biz Markie of "The Andy Milonakis Show". Biz Markie was a cast member on Nick Cannon's "Wild 'n Out", seasons 1 and 3. Biz also does the beatboxing segment, "Biz's Beat of the Day" on the Nick Jr. show "Yo Gabba Gabba!". Biz Markie began 2008 opening for Chris Rock's "No Apologies" tour. Biz Markie's act includes spinning records ranging from old school hip hop to Lynyrd Skynyrd and then performing "Just a Friend". Biz Markie's playlist includes the following: "Children's Story" by Slick Rick, "Rapper's Delight" by The Sugarhill Gang, "Billie Jean" by Michael Jackson, "Holiday" by Madonna, "Wake Me Up