Boston Marathon Explosion: Celebrities Who Sent Their Condolonces & Prayers
Justin Timberlake My thoughts and prayers are with everyone in the city of Boston and all of those affected by this terrible incident.

He made his musical comeback earlier this year with the release of Shirt and Tie, but it is Justin Timberlake's follow up single that has left fans begging for more.

The 32-year-old singer-turned-actor has released the music video for Mirrors, an emotional track about a strong bond between soulmates.

For the promo clip, Timberlake pays tribute to his grandparents, who were married for 63 years, and invites fans on a journey of a lifetime.

The song, the second offering from Timberlake's highly-anticipated album The 20/20 Experience, features the lyrics: "It's like you're my mirror, my mirror staring back at me.

I couldn't get any bigger, with anyone else beside of me.

And now it's clear as this promise, That we're making two reflections into one."

At the beginning of the eight-minute video, directed by Floria Sigismondi, the text shows a dedication to Timberlake's grandparents, William and Sadie Bomar. His grandfather passed away last year.

The musical love story goes on to portray an elderly couple who flash back to their experiences throughout their life together.

It captures their ups and downs with juxtaposed clips which include a bride distraught on their wedding night, and an elderly couple dancing and smiling together.

Timberlake himself only appears at the end of the video when he is shown dancing in a room full of mirrors.

"Thanks for warming up his seat Bieber, BUT THE REAL JUSTIN IS BACK," one fan said.

Another wrote: "This is beautiful."

"This is simply breathtaking! The fact that JT told the love story of his grandparents and how it lasted until the end is something inspiring!" a viewer by the name Krriztian Leon added.

It has been suggested that the video is also a reflection of Timberlake's union with wife Jessica Biel, and his hope that they will spend the rest of their lives together.