Best Celebrity Instagrams of the Week: friends remember Nelson Mandela and Paul Walker, others celebrate life by living each day to its fullest [PHOTOS]

Yet another week in the world has come and gone, and thus, another week has passed in the world of celebrity Instagrams.

In this week’s installation of Best Celebrity Instagrams, MStars News looks at a grab bag of photographs. Hollywood was struck with tragedy this week with the death of Paul Walker and later, the whole world mourned the death of Nelson Mandela while celebrating the great leader’s life. However, life keeps moving forward, and others just keep living each day with love in their hearts.

Director Spike Lee shared a moment from when he met Mandela on his Instagram. The South African president is wearing a hat from Lee’s biopic of Malcon X.

The moviemaker wasn't the only one who showed a moment with Mandela on Instagram. "All Of Me" singer John Legend also mourned by sharing when he met Mandela, writing he had "never been so honored to meet anyone."

Earlier in the week, The Fast and Furious star Paul Walker passed away at the tragically young age of 40 in a car accident. His movie coworkers took some time out to celebrate their love for Walker on Instagram. Walker's co-star and close friend Tyrese Gibson shared a video clip from an old red carpet interview, wherein he expressed his love for Walker and gave his fellow actor a big bear hug.

Ludacris, another star of the Fast and Furious franchise also shared a photo from the set of filming, wherein he said he was thankful for his "Fast family."

Of course, not all of Instagram was so somber in this sad week. There was still life to celebrate and live.

No one demonstrated that better than supermodel Gisele Bundchen, who gave fans a peek into her personal life as she did yoga with her son.

Beyoncé also gave viewers some family love with this touching picture of her daughter Blue Ivy, who's rocking a custom, studded jacket and floral Doc Martens while holding onto her daddy's hand.

Rihanna and Katy Perry showed off their best friendship on RiRi's Instagram

And Big Boi and Andre 3000 reunited their love (and music) in Atlanta.

Miley Cyrus, usually known for her outrageous Instagrams, toned things down this week and wrote about her love of music while playing a piano, saying she felt people would die of a broken heart without it.

And Taylor Swift shared her love of the holidays.

Finally, because not everything has to be so serious this time of year, actor James Franco lightened things up with a "50 Shades of Batman and Robin," complete with batty bondage gear.