Barnett will play gigs in March and April following release of debut album 'Sometimes I Sit And Think, And Sometimes I Just Sit'
'Sometimes I Sit and Think, and Sometimes I Just Sit' is out March 23
Australian singer first recorded cover version during NME session in January
Australian singer performs her take on song that helped inspire debut album
The song will feature on a Milk! Records compilation
The singers performed together on Australian TV show RocKwiz
Singer-songwriter is expected to release her debut album proper later this year
Singer-songwriter makes US TV debut with late-night performance
The Australian singer-songwriter will release her debut album this year