By Piya Sinha-Roy LOS ANGELES (Reuters) - Rapper Drake vaulted straight to No. 1 on the weekly Billboard 200 album chart on Wednesday, as his latest album garnered the second-largest sales week of the year so far. "Nothing Was the Same," the third studio album from the Canadian rapper, sold 658,000 copies in its first week, according to figures from Nielsen SoundScan. Only Justin Timberlake's "The 20/20 Experience," which opened with 968,000 copies in March, outsold "Nothing Was the Same" in a one-week period. All three of Drake's studio albums have debuted at No. ...