February to April, leaving the show with no writing staff during that time. At the beginning of season 4, the show aired its final special entitled "Come Rain Or Shine", created to transition viewers from Grey's Anatomy to Private Practice, which was narrated by the editors of People magazine. The show received a renewal for a fifth season, which premiered on September 25, 2008, and concluded on May 14, 2009, consisting of 24 episodes. The series was renewed for a sixth season consisting of 24 episodes, which commenced on September 24, 2009, and ended on May 20, 2010. During season 6, Grey's Anatomy aired a series of webisodes entitled Seattle Grace: On Call at ABC.com. ABC renewed the show for a seventh season, which premiered on September 23, 2010, and concluded on May 19, 2011, consisting of 22 episodes. This was followed up with Seattle Grace: On Call, Seattle Grace: Message of Hope, aired during the beginning of season 7. Also during season 7, the series produced a musical episode entitled "Song Beneath the Song", featuring songs that became famous through their use in Grey's Anatomy. The show received a 24-episode eighth season renewal, which commenced on September 22, 2011, with a 2-hour episode, and ended on May 17, 2012. Grey's Anatomy was renewed for a ninth season, which premiered on September 27, 2012, and ended on May 16, 2013. Grey's Anatomy was renewed for a tenth season on May 10, 2013 and premiered on September 27, 2013, with a 2-hour episode, and ended on May 15, 2014. On May 8, 2014, ABC renewed the series for an 11th season that aired from September 25, 2014, to May 14, 2015. In addition, the show was relocated to the Thursday 8:00 pm EST time slot. After four seasons outside the Top 25 rated shows, Grey's Anatomy was the No. 15 show in the 2013–2014 season, the show's tenth. The show also re-entered the Top 5 shows in the 18–49 viewer demographic. On May 7, 2015, ABC renewed the series for a 12th season that premiered on September 24, 2015, and concluded on May 19, 2016. The 13th season aired from September 22, 2016, to May 18, 2017. The 14th season aired from September 28, 2017, to May 17, 2018. The 15th season aired from September 27, 2018, to May 16, 2019. The 16th season aired from September 26, 2019, to April