After finding out about her fiancé's cheating ways, a pop superstar impulsively marries a total stranger. They must soon decide if two people from such different worlds can find true love.

The sharks take bite out of the East Coast when the sharknado hits Washington, D.C. and Orlando, Florida.

In an NBC News exclusive, Celine Dion speaks with TODAY’s Hoda Kotb in her first television interview since being diagnosed with Stiff Person Syndrome; during the rare one-on-one, Dion shares a candid look at how she is coping with the illness.

VH1 Divas: An Honors Concert For The VH1 Save The Music Foundation aired live on September 17, 2009 at the Brooklyn Academy of Music (BAM) Howard Gilman Opera House in Brooklyn, New York. Paula Abdul hosted and performed. This concert, which featured a new and younger crop of divas as headliners, has not been released on CD or DVD.

Fin and his wife April travel around the world to save their young son who's trapped inside a sharknado.

Jon Stewart returns to television to host a live show presented from The Theater at Madison Square Garden in New York. Benefiting NEXT for Autism, the special features stand-up performances, sketches and short films.

In anticipation of the most talked-about nuptials of the year, Savannah Guthrie and Hoda Kotb of NBC's "TODAY" take viewers to London to reveal exclusive insights on the wedding of Prince Harry and Meghan Markle.

The highlights and newsmakers of 2018 are brought to the fore in this year-end review.

In a one-time special event featuring all the beloved characters from the original series, Liz Lemon and Jack Donaghy reunite the TGS team to help Kenneth Parcell with an advertiser presentation.

The 92nd annual tree-lighting ceremony in New York kicks off the holiday season with a dazzling display of musical talents, star-studded surprises and the lighting of the iconic Rockefeller Center Christmas tree.