PurposeThe purpose of this paper is to explore the “mash‐up” of business strategy and corporate social responsibility (CSR). In popular music, a mash‐up is a file of digitally combined musical sources. Song A is played simultaneously with Song B, and in various other combinations. There are often elements of dissonance, and even cacophony, to the form – but the sum of the parts often surpasses the originals. CSR is a management innovation like the idea of business strategy itself. Each is also a metaphor representing alternative visions and approaches to corporate value creation. Business strategists are talking, writing, and meeting about CSR, and CSR is increasingly intersecting, integrating, converging, with business strategy. The trend is described within as a “mash‐up”. But what is the significance of this trend? How serious should companies be about it? Is CSR going to become a part of standard business theory and practice? How long will it take? What should organizations do to respond and participate?Design/methodology/approachThis paper examines two propositions. First, that CSR is more than a set of ideas and processes; it is a metaphor for a different approach to business. Second, CSR is a management innovation like strategic planning itself. The paper concludes that the impact the two ideas will have on each other and society is fundamentally unpredictable, but it is likely that eventually the current CSR mania will subside and disillusionment will set in.FindingsCSR is a highly significant trend, and well‐managed companies are already taking it very seriously. CSR may become a part of standard business theory and practice, but not without evolving through adoption patterns that will necessarily involve some disillusionment. Leaders will guide their company through this period by focusing on how to make CSR “real” for their organization by embracing the business strategy/CSR mash‐up and driving growth and innovation within the new parameters.Originality/valueFamiliarizes business strategists with CSR and CSR practitioners with points of connection and overlap with business strategy.