Canadian rapper Drake has taken his feud with rival Kendrick Lamar to the US court system, accusing record label Universal Music of conspiring to inflate the California hip-hop star’s streaming numbers and of defaming him, according to legal filings and media reports Tuesday.According to a court document filed in New York, Drake also accused UMG of using automated computer “bots” to artificially inflate the supposed number of times the song has been streamed on Spotify.