US rapper Snoop Dogg invests in Swedish online payments company

US rapper Snoop Dogg has invested in Swedish online payments startup Klarna, which was last valued at $2.5 billion. Klarna, known for its "Smoooth Payments" slogan, has dubbed the 47-year-old artist as "Smoooth Dogg" as part of an ad campaign. Snoop Dogg's venture firm Casa Verde Capital has previously invested mainly in cannabis industry companies.