Photo credit: Matt Thorpe Singer-songwriter Jack Savoretti and mezzo-soprano classical superstar Katherine Jenkins have joined forces today releasing a new single ‘What The World Needs Now Is Love’ via War Child Records  Stream here. With Jack inviting Katherine to create this special recording in aid of War Child, the track combines Jack’s soulful tones with Katherine’s soaring vocals to demonstrate a simple yet much needed message – the world needs more love, for everyone. Originally performed by Jackie DeShannon in 1965, the lyrics remain just…