The deals that defined KKR's 21st century evolution

As Henry Kravis and George Roberts step down from the helm of KKR, the private equity firm remains inextricably tied to the 1988 takeover of RJR Nabisco and the buyout era it embodied.

But in the intervening decades, KKR has grown beyond its big buyout reputation. In recent years, the firm has become a private equity leader in Asia, a backer of some of tech's fastest-growing companies, and even a SPAC sponsor.

From dot-com deals gone bust to Toys R Us and Dollar General, here's a brief history of KKR in the 21st century.