The Blackstone Group completed the investment in New Tradition Media, an out-of-home media operator with assets across the nation’s largest markets. Financial terms were not disclosed. "We’re thrilled to partner with Blackstone, whose track record of scaling founder-led businesses and significant real estate expertise, will enable New Tradition to accelerate the expansion of our footprint and continue to provide cutting edge out-of-home advertising solutions to new and existing clients," Evan Richheimer, New Tradition CEO.