Question: The Nickelodeon Australian Kids' Choice Awards 2008 were hosted by what American professional wrestler who started his professional wrestling career in 1999 with Ultimate Pro Wrestling?

full_context: Document 1: WWE Slam City: WWE Slam City was an animated show produced by WWE, which aired on the WWE Network and Wednesday evenings on Nicktoons. WWE Slam City was based on the Mattel action figure series starring toyetic versions of the WWE roster circa 2013. The series, filmed in the next generation of stop-motion animation, features a new WWE animated character The Finisher, who fires all of the WWE wrestlers and sends them to Slam City to find day jobs. The wrestlers are plunged into new career challenges as they pack every street corner with work to do and scores to settle. With John Cena as an auto mechanic, Rey Mysterio as a traffic guard, Alberto Del Rio as a coffee house barista, Mark Henry as a pizza shop mascot, CM Punk as an ice-cream man, Dolph Ziggler as an industry leader, Randy Orton as a zookeeper, Kane as a chef and Sheamus as a theater usher. Daniel Bryan, The Miz, Big Show, Brock Lesnar, Santino Marella and Damien Sandow are still jobless but Santino and Sandow are the most desperate to find one. WWE Legends Stone Cold and The Rock are also featured in Slam City. The 'Stretch Move' feature of Slam City characters is highlighted in WWE Slam City.
Document 2: 2008 Kids' Choice Awards: The 21st annual Nickelodeon Kids' Choice Awards were held at the Pauley Pavilion, Los Angeles, California on March 29, 2008. The show was the first live-action/animated Kids Choice Awards show. The event was hosted by Jack Black. Voting began March 3 on Nick.com and Nicktropolis. A "Bring on the Nominees" special hosted by Lil' JJ aired also. The Naked Brothers Band and Miley Cyrus were musical performances for the show. A sweepstakes was announced to promote the show. The number of votes cast broke the record previously set in 2007. 86,708,020 kids cast 88,254,272 votes (since kids were allowed to vote multiple times) between March 3–29 in 18 categories, to honor and vote for their favorites. Votes were cast via Nick.com, Nicktropolis, TurboNick, and for the first time via Nick's new mobile website (wap.nick.com). The award show attracted 7.7 million viewers.
Document 3: Nickelodeon Australian Kids' Choice Awards: The Australian Nickelodeon Kids' Choice Awards was an annual awards show that awarded entertainers with a blimp trophy, as voted by kids. The show was usually held during October or November and a televised show was produced, touted as the "biggest party for kids on the planet". The Australian Nickelodeon Kids' Choice Awards were discontinued after 2011 and replaced by Nickelodeon Slimefest from 2012.
Document 4: Nickelodeon Australian Kids' Choice Awards 2008: The 6th annual Nickelodeon Australian Kids' Choice Awards were held on 11 October 2008 at the Hisense Arena in Melbourne. John Cena has been picked to host the Nickelodeon Kids Choice Awards alongside Natalie Bassingthwaighte.
Document 5: Santino Marella: Anthony Carelli (born March 14, 1974) is a Canadian sports analyst, trainer, entrepreneur, actor, and retired professional wrestler and mixed martial artist, who currently works for the Canadian sports TV network Sportsnet. He is best known for his 11-year tenure in WWE, most notably under the ring name Santino Marella. He is the founder of Canadian martial arts and professional wrestling training facility Battle Arts Academy.
Document 6: 2017 Kids' Choice Awards: The 30th Annual Nickelodeon Kids' Choice Awards was held on March 11, 2017, at the Galen Center on the University of Southern California campus in Los Angeles live on Nickelodeon and either live or on tape delay across all of Nickelodeon's international networks and also served as a full-length TV movie. John Cena hosted the ceremony. This is the earliest Kids' Choice Awards ceremony date to take place, with the former latest being the 1989 ceremony on June 25, 1989.
Document 7: Brock Lesnar: Brock Edward Lesnar ( ; born July 12, 1977) is an American professional wrestler and former professional mixed martial artist, professional American football player and amateur wrestler who is currently signed with WWE. He performs on the Raw brand where he is the current WWE Universal Champion in his first reign.
Document 8: Randy Orton: Randal Keith Orton (born April 1, 1980) is an American professional wrestler and actor. He is currently signed to WWE, where he performs on the SmackDown brand.
Document 9: Chris Jericho: Christopher Keith Irvine (born November 9, 1970), better known by the ring name Chris Jericho, is a Canadian-American professional wrestler, musician, media personality, actor, author, podcaster, and businessman signed to WWE on the SmackDown brand, where he is currently on a hiatus due to an expected tour with Fozzy. He is known for his over-the-top, rockstar persona.
Document 10: John Cena: John Felix Anthony Cena ( ; born April 23, 1977) is an American professional wrestler, rapper, actor, and reality television show host. He is currently signed to WWE, where he is a free agent, appearing for both the Raw and SmackDown brands. Cena started his professional wrestling career in 1999 with Ultimate Pro Wrestling (UPW) and won the UPW Heavyweight Championship the following year. Cena signed a developmental contract with the World Wrestling Federation (WWF, later renamed to World Wrestling Entertainment, or simply WWE) in 2001, debuting on the WWE main roster in 2002.
Document 11: Unexpected John Cena: Unexpected John Cena, also known as simply Unexpected Cena or And His Name is John Cena, refers to an Internet meme and a form of trolling involving videos that first garnered popularity on video-sharing services such as Vine and YouTube in the summer of 2015. Born and inspired by numerous prank calls done on the "Z Morning Zoo" show in 2012, the clips, noted by one writer to symbolize frustration of fans of WWE regarding American wrestler John Cena's over-publicity, depict a snippet of a popular film, TV series, song or other form of media that gets interrupted by Cena's entrance video, as an announcer yells "And his name is John Cena!" and his theme song "The Time Is Now", often played loudly. The meme was very well received by journalists and Cena himself.
Document 12: 2015 Kids' Choice Awards: Nickelodeon's 28th Annual Kids' Choice Awards was held on March 28, 2015, at the Forum in Inglewood, California and hosted by Nick Jonas. The show was broadcast at 8:00 PM (ET/PT), produced by Nickelodeon Productions, with a simulcast in the United States also carried across sister networks TeenNick, Nicktoons and TV Land, along with the network's mobile apps and website. It was lead into by a double episode of "The Thundermans". There were 4 new categories this year. Voting took place in six continents on 19 localized websites, along with various simulcasts across the world, on either live or tape-delayed. Despite the simulcast, the show suffered a deep drop from the 2014 ceremony, attracting approximately 3,630,000 million total viewers for the original American airing, a drop of 27% from year to year. TV sitcom "Austin & Ally" swept the KCAs, taking home 3 blimps; the series is the second from Disney Channel to win favorite kids show in KCA history.
Document 13: The Miz: Michael Gregory Mizanin (born October 8, 1980) is an American professional wrestler, reality television star, and actor. He is signed to WWE, where he performs on the Raw brand under the ring name The Miz and is the current Intercontinental Champion in his seventh reign.
Document 14: 2011 Kids' Choice Awards: Nickelodeon's 24th Annual Kids' Choice Awards were held on April 2, 2011, at 8 p.m. ET at the Galen Center at the University of Southern California in Los Angeles, California, US's University Park neighborhood due to renovations disallowing use of traditional venue Pauley Pavilion until at least 2013. Jack Black returned as host for the third time since 2006. The 2011 telecast was the first Kids' Choice Awards to take place in the month of April since 2006, as the previous four Kids' Choice telecasts from 2007 to 2010 were held on the last Saturday in March. Nominees were announced on February 10, 2011, for twenty categories. During the show, the Big Green Help Award was presented to Justin Timberlake, an honor given each year. More than 200 million record-breaking votes were cast for this year's 20-category awards.
Document 15: 2014 Kids' Choice Sports Awards: Nickelodeon's 1st Annual Kids' Choice Sports Awards was held on July 17, 2014, at the Pauley Pavilion in Los Angeles, California. Hall of Fame Athlete/Talk Show host Michael Strahan hosted the ceremony to celebrate kids’ favorites in the sports world. The show aired on Nickelodeon from 8 p.m. to 9:30 p.m. ET/PT, tape delayed for West Coast in the United States and Canada. When this award show aired, Nickelodeon took their other channels (with the exception of Nick Jr.) off the air with a message telling people to go to watch the awards show on the main channel.
ground_truth: John Felix Anthony Cena