Beyonce and Jay-Z celebrated their four-year wedding anniversary -- their special number! -- on Wednesday and this year, they have a new component to add to the bliss: baby Blue Ivy Carter.

Fans will be excited to hear that Beyonce, who keeps her life a mystery, will release never-before-seen personal photos on a soon-to-be-created Tumblr account to ring in her fourth anniversary, MTV reported.

But while the couple appears to be famously private with their personal lives, there is a lot of information out there about the dynamic hip-hop duo.

It is unknown when the two first met or the exact date they began dating, but Beyonce first sang with Jay-Z in 2002 on his track Bonnie & Clyde for his seventh album, The Blueprint 2: The Gift & The Curse. Similarly in 2003, Jay-Z did vocals on the track Dangerously in Love on Beyonce's solo album debut.

According to MTV News, Jay-Z proposed to Beyonce in 2004 at a part for Lyor Cohen.

You've been one of the best friends I could have had apart from this woman beside me (Beyoncé), who I love and who I will marry very soon, Jay-Z said.

Between the track appearances and the proposal leak, the couple remained tight-lipped about their relationship, aside from the countless paparazzi photos of the pair out and about.

Jay and I have kind of made a decision that we want to be known for our music and not our relationships or scandals. But he is amazing, Beyonce told Piers Morgan in 2011. I definitely had a very natural friendship and connection with him. We've been together for a very long time and I'm very happy. Love is the foundation of everything, everything I do. My music is inspired by love - from my family, my husband, my sister.

In 2006, Jay-Z and Beyonce were named the Most Powerful Couple in Time magazine's 100 Most Influential people issue.

Four years ago today, on April 4, 2008, Jay-Z and Beyonce married at a small gathering of close friends and family in Jay-Z's apartment in New York City. The only glimpse into the wedding of the century the public received was a peak at Bey's wedding dress in her Live at Roseland DVD released in 2011.

Ironically enough, the couple wed on the fourth of the month, which they have repeatedly named as their lucky number.

We all have special numbers in our lives, and four is that for me, Beyonce said. It's the day I was born. My mother's birthday and a lot of my friends' birthdays are on the fourth; April 4 is my wedding date along with Jay-Z's birthday.

In 2011, Beyonce announced she was pregnant and gave birth to the most famous baby on the planet, Blue Ivy Carter, on Jan. 7, 2012.

View the slideshow to see photos of Jay-Z and Beyonce in addition to Blue Ivy Carter over the years.

November 2008
Jay-Z and Beyonce watch New York Knicks play Cleveland Cavaliers in their NBA basketball game in New York. Reuters
Beyonce Breastfeeding
Beyonce dined with Jay-Z and baby Blue Ivy Carter at Sant Ambroeus in New York City's West Village last Saturday. During the meal, three observers confirmed to Us Weekly magazine that the new mama breastfed her Blue Ivy at the table. FameFlynet
September 2011
Rapper Jay-Z and his wife, singer Beyonce, attend the match between Novak Djokovic of Serbia and Rafael Nadal of Spain in the men's final of the U.S. Open tennis tournament in New York, September 12, 2011. Reuters
May 2011
Singers and husband and wife Jay-Z and Beyonce arrive at the Metropolitan Museum of Art Costume Institute Benefit celebrating the opening of the exhibition "Alexander McQueen: Savage Beauty" in New York May 2, 2011. Reuters
February 2011
Jay Z and his wife Beyonce (wearing Christian Louboutin shoes) watch the New Jersey Nets play the Phoenix Suns in the second quarter of their NBA basketball game in Newark, New Jersey, February 28, 2011. Reuters
June 2010
Musicians Jay-Z and Beyonce Knowles watch the men's final between Rafael Nadal of Spain and Robin Soderling of Sweden at the French Open tennis tournament at Roland Garros in Paris. Reuters
June 2009
Singers Jay-Z and Beyonce attend the BET Awards '09 in Los Angeles June 28, 2009. Reuters
February 2009
Jay-Z (L) and Beyonce watch the halftime show during the NBA All-Star basketball game in Phoenix, Arizona, February 15, 2009. Reuters
January 2009
Musicians Beyonce Knowles and Jay Z arrive at the 66th annual Golden Globe awards in Beverly Hills, California January 11, 2009. Reuters
Blue Ivy Carter looks like Jay-Z
Blue Ivy Carter looks like Jay-Z Reuters
December 2007
Beyonce Knowles leaves the court with companion Jay-Z after the New Jersey Nets beat the Cleveland Cavaliers during the NBA basketball game in East Rutherford. Reuters
December 2006
Entertainers Jay-Z (L) and Beyonce laugh during the New Jersey Nets and Cleveland Cavaliers NBA basketball game in East Rutherford, New Jersey, December 20, 2006. Reuters
June 2006
R&B artist Beyonce (R) performs "Deja vu" with rap artist Jay-Z at the 2006 BET Awards at the Shrine Auditorium in Los Angeles in June 27, 2006 file photo. A new crop of rappers want to emulate the success of rappers-turned-moguls like former New York drug dealers Jay-Z and 50 Cent, who both sold albums based on their transformations from street hustling to popping champagne. Reuters
February 2006
Singer Shawn 'Jay-Z' Carter (R) sits with singer Beyonce Knowles (L) before the NBA All-Star game in Houston, Texas. Reuters
February 2005
Entertainers Beyonce (L) and her boyfriend Jay-Z arrive for the 77th annual Academy Awards in Hollywood in this file February 27, 2005 photo. Pop diva Beyonce denied rumors she is secretly married to rapper and music impresario Jay-Z, and said she assumed an alter-ego called "Sasha" for her sexy stage persona in an upcoming Vanity Fair cover story. Reuters
August 2004
Beyonce and Jay Z sit with the crowd at the MTV Billboard awards in Miami, Florida, August 29,2004. Beyonce won Best Female Video and Jay Z won the Best Male Video awards. Reuters
August 2003
Jay-Z and Beyonce Knowles perform at the 2003 MTV Video Music Awards at the Radio City Music Hall in New York, August 28, 2003. Reuters
New York Beyonce New York