Question:
Louis A. Szekely (born September 12, 1967), better known by his stage name Louis C.K. (), is an American stand-up comedian, writer, actor, and filmmaker. He is known for his use of observational, self-deprecating, dark, and shock humor. In 2012, C.K. won a Peabody Award and has received six Primetime Emmy Awards, as well as numerous awards for The Chris Rock Show, Louie, and his stand-up specials Live at the Beacon Theater (2011) and Oh My God (2013). He has won the Grammy Award for Best Comedy Album twice.
In August 2005, C.K. starred in a half-hour HBO special as part of the stand-up series One Night Stand. Inspired by the work ethic of fellow comedian George Carlin, who had committed to dropping all of his existing material and starting over every year, In June 2006, C.K. starred in and wrote Lucky Louie, a sitcom he created. The series premiered on HBO and was videotaped in front of a studio audience; it was HBO's first series in that format. Lucky Louie is described as a bluntly realistic portrayal of family life. HBO canceled the series after its first season. He appeared in three films in 2008: Welcome Home Roscoe Jenkins, Diminished Capacity, and Role Models. C.K. launched his first hour-long special, Shameless, in 2007, which aired on HBO and was later released on DVD. In March 2008, he recorded a second hour-long special, Chewed Up, which premiered on Showtime Network on October 4, 2008, and was nominated for a Primetime Emmy Award for Outstanding Writing for a Comedy or Variety Special. C.K. and his wife Alix Bailey divorced in 2008, with C.K. and Bailey sharing joint custody of their children. In a 2010 interview, C.K. talked about how, after his divorce, he thought, "well, there goes my act." He alluded to the way that his marriage had been central to his act and his life, and he said that it took him approximately a year to realize "I'm accumulating stories here that are worth telling." One element in his preparation for stand-up was training at the same boxing gym as Lowell, Massachusetts fighter Micky Ward, trying to "learn how to ... do the grunt work and the boring, constant training so that you'll be fit enough to take the beating." On April 18, 2009, C.K. recorded a concert film titled Hilarious. Unlike his previous specials--which had all been produced for television networks--Hilarious was produced independently, directed by C.K. himself, and sold to Epix and Comedy Central after it was complete. As a result, it was not released until late 2010. It was published on DVD and CD in 2011. It is the first stand-up comedy film accepted into the Sundance Film Festival. From 2009 to 2012, C.K. played Dave Sanderson, a police officer and ex-boyfriend of Leslie Knope (played by Amy Poehler) in the sitcom Parks and Recreation. He also co-starred in the romantic comedy fantasy film The Invention of Lying, directed by and starring Ricky Gervais, in 2009.
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What was his first stand-up performance?

Answer:
C.K. starred in a half-hour HBO special as part of the stand-up series One Night Stand.

Question:
The Grand Ole Opry is a weekly country-music stage concert in Nashville, Tennessee, which was founded on November 28, 1925, by George D. Hay as a one-hour radio "barn dance" on WSM. Currently owned and operated by Opry Entertainment (a division of Ryman Hospitality Properties, Inc.), it is the longest-running radio broadcast in US history. Dedicated to honoring country music and its history, the Opry showcases a mix of famous singers and contemporary chart-toppers performing country, bluegrass, Americana, folk, gospel, and comedic performances and skits. It attracts hundreds of thousands of visitors from around the world and millions of radio and Internet listeners.
Following the departure of the Opry, Ryman Auditorium sat mostly vacant and decaying for twenty years. An initial effort by National Life & Accident to tear down the Ryman and use its bricks to build a chapel at Opryland USA was met with resounding resistance from the public, including the influential musicians of the time. The plans were abandoned, and the building remained standing with an uncertain future. Despite the absence of performances, the building still held such significance as an attraction that it would remain open for tours. In 1991 and 1992, Emmylou Harris performed a series of concerts there and released some of the recordings as an album entitled At the Ryman. The concert and album's high acclaim renewed interest in reviving Ryman Auditorium as an active venue. Beginning in September 1993, Gaylord Entertainment undertook a full renovation of the Ryman, restoring it into a world-class concert hall that reopened with a broadcast of A Prairie Home Companion on June 4, 1994. On Sunday, October 18, 1998, the Opry held a benefit show at Ryman Auditorium, marking its return to the venue for the first time since its final show on March 15, 1974. The show was well received by fans, performers, and management alike, and so the decision was made to host the Opry's regular shows there on January 15 & 16, 1999 as part of the celebration to commemorate 25 years at the new venue. Beginning in November 1999, the Opry was held at Ryman Auditorium for three months, partly due to the ongoing construction of Opry Mills. The Opry has returned to the Ryman for the three winter months every year since, allowing the show to acknowledge its roots while also taking advantage of a smaller venue during an off-peak season for tourism. While still officially the Grand Ole Opry, the shows there are billed as Opry At The Ryman. From 2002 to 2014, a traveling version of the Radio City Christmas Spectacular took up residence at the Grand Ole Opry House each holiday season while the Opry was away. It was replaced by Dr. Seuss' How the Grinch Stole Christmas! The Musical beginning in 2015.
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What other concerts took place there?

Answer:
traveling version of the Radio City Christmas Spectacular took up residence at the Grand Ole Opry House each holiday season while the Opry was away.