Tom and Katie have befriended some of the most powerful couples in Hollywood, most notably David and Victoria Beckham, Will and Jada Pinkett-Smith and the now-estranged couple Jennifer Lopez and Marc Anthony.
Tom and David Beckham reportedly first met in 2003 and developed a bond so strong that David named his third son, Cruz, after the star.
In 2004, Tom starred in Collateral with Jada Pinkett-Smith, which sparked his friendship with Will. Tom even made a point to make an appearance at Will's hand and footprint ceremony at the Grauman's Chinese Theatre in 2007.
J.Lo and Marc Anthony were guests at the couple's wedding and J.Lo made headlines when she performed with Tom (dressed as his Topic Thunder character Les Grossman) at the 2010 MTV Movie Awards.
The matter of who remains friends with who seems to still be up in the air. While Tom has had a longer relationship with the Beckhams, Victoria is reported to be one of those that Katie secretly consulted leading up to the divorce. In Will and Jada's case, they've also had a longer friendship with Tom and are believed to be siding with the Oscar winner.