Tom Parker has revealed The Wanted's recent reunion has help to lift his spirits as he continues to battle an inoperable brain tumour.The 33 year old reunited with his bandmates Max George, also 33, Siva Kaneswaran, 32, Jay McGuinness, 31, and Nathan Sykes, 28, last month to announce a greatest hits album and tour.They made their first performance in seven years at Tom's Inside My Head concert, which he organised in conjunction with Stand Up 2 Cancer.