Taylor Swift, Justin Bieber, Prince, Bruno Mars and Miguel are among the artists scheduled to perform at this year's event at the MGM Grand in Las Vegas. Prince is also receiving the Billboard Icon Award. Tracy Morgan hosts the festivities.

Returning contestants and special guests -- including Taylor Hicks, Gilbert Gottfried, Tim Tebow, the Oak Ridge Boys and Wayne Newton -- help the finalists put the finishing touches on their charity event before Donald chooses the winner. Joan Rivers and Ivanka Trump are the boardroom advisers for the season finale, "One of Us Will Win, but Not by Much."

This new special looks back at Jeremy Wade's best moments of Season 5 so far, including a mission to Chernobyl's nuclear wastelands in search of a giant mutant fish, a trip to Nicaragua to capture a killer torpedo and a quest on American soil in pursuit of a prehistoric underwater vampire.

National League playoff contenders go at it today at Turner Field, where Justin Upton and the East-leading Atlanta Braves close out a four-game series against Adrian Gonzalez and the struggling Los Angeles Dodgers. Upton and a solid, youthful rotation have led the way for the Braves in the early going, while a lackluster offense and porous team defense have held the Dodgers back.

The war between the Autobots and the Decepticons rages anew, with young Sam (Shia LaBeouf) still caught in the middle, in returning director Michael Bay's relentlessly noisy, almost completely incoherent action sequel inspired by the Hasbro toy line. Optimus Prime (voice of Peter Cullen) again leads the assault on Megatron (voice of Hugo Weaving) and other enemies, while Mikaela (Megan Fox) does what she can to help Sam. Josh Duhamel, Tyrese Gibson and John Turturro also return from the original cast.

There's no need to fear; just keep your remote near. This 2007 live-action take on the classic cartoon will break the heart of anyone who knew and loved the original. Jason Lee ("My Name Is Earl") -- who's built up quite a resume voicing former 1960s 'toon icons ("Alvin and the Chipmunks") -- provides the voice of the hound who becomes a superhero after a lab accident gives him powers. Kids who haven't seen the cartoon won't care, but for anyone who has, comparisons are inevitable, and this one is, well, a dog.

When Cleveland receives an unexpected invitation from Freight Train to attend an event together, Dr. Fist thinks that dementia might be behind the older man's newfound friendliness. The kids' busy schedules have Cleveland and Donna feeling overwhelmed in the hourlong season finale, "Crazy Train; Wheel! Of! Family!" Bryan Cranston ("Breaking Bad") provides a guest voice.

In the one-hour season finale, Homer, Moe, Lenny and Carl win a $200,000 lottery jackpot, but when Carl absconds to Iceland with all the money, the others follow him there to get it back. After she mistakes a dating site for a baking site, Marge is pursued by a charming fellow (voice of Seth MacFarlane) who shares her taste in television. Lisa Lampanelli also provides a guest voice in "The Saga of Carl; Dangers on a Train."

Chummy and PC Noakes (Miranda Hart, Ben Caplan) meet with new challenges as they settle back into life in Poplar. Fred (Cliff Parisi) is in high spirits when his pregnant daughter Dolly (Ella Smith) and her son come to stay with him. Jenny's (Jessica Raine) jubilation comes in the form of a potential love interest. Old buildings are being demolished to make way for new flats, a situation that reaches a crisis point when the convent comes under threat.

The last two American League champions go at it tonight in Texas, where Ian Kinsler and the Rangers host Miguel Cabrera and the Detroit Tigers in the finale of a four-game set. A powerful lineup led by Cabrera and Prince Fielder and a sterling rotation led by Justin Verlander and Anibal Sanchez have led the way for the Tigers, while the Rangers have found out that life after Josh Hamilton is better than they imagined, especially with the AL's best pitching staff.

This seven-part natural history series from some of the producers of "Planet Earth" spent three years covering the continent of North America, from the Canadian tundra to the tropical Central American rain forests. It kicks off tonight with "Born to Be Wild," in which a journey across the continent introduces some of its wildest places and an incredible array of wildlife, from mountain goats to sea turtles.

Stewie's time machine malfunctions when he and Brian use it to catch a Bette Midler concert in Las Vegas, creating alternative versions of each of them -- one lucky and one unlucky. The Griffins are invited to join an elite country club, with the expected disastrous results, in the one-hour season finale, "Road to Vegas; No Country Club for Old Men."

In the eighth installment of "Mr. Selfridge," tragedy strikes on the day polar explorer Sir Ernest Shackleton (Mark Dexter) comes to the store. An even greater celebrity plans a visit, and Harry and Rose (Jeremy Piven, Frances O'Connor) attend a shocking play. Aisling Loftus and Gregory Fitoussi also star.

Not for country fans only, this special has McGraw performing with and introducing a diverse lineup of artists that includes Nelly, Ne-Yo, Pitbull and John Fogerty. The Band Perry, Keith Urban, Lady Antebellum, Taylor Swift, Jason Aldean, Dierks Bentley and McGraw's wife, Faith Hill, are also in the lineup.