"I Drove All Night" was chosen as the leadoff single and became a hit, reaching number one in Canada, Belgium and Sweden. Although "Have You Ever Been in Love" was already featured on Dion's previous album "A New Day Has Come", it was released as the second single from "One Heart" in the United States and third in selected countries. It was successful on the Adult Contemporary charts in the US and Canada, reaching number two and three, respectively. The title track promoted the album as the second single outside the United States, and reached top forty in various countries, including number twenty-seven in the United Kingdom. There were also two radio releases at the end of 2003: "Stand by Your Side" in the US and "Faith" in Canada. The album received mainly mixed reviews from most music critics. AllMusic's senior editor Stephen Thomas Erlewine rated it two-and-a-half stars out of possible five, writing that the collaboration with Britney Spears's producer Max Martin in three tracks was a sign of "desperation that underscores every minute of "One Heart", where it seems like Dion will do anything to stay on the charts". Erlewine also wrote that ""One Heart" favors a smooth Vegas-showstopper gloss to radio-ready sheen, which only accentuates the lack of cohesiveness here" and that the album "reveals all her weaknesses". Chuck Arnold of "People" wrote a mixed review towards the album's songs, calling it "a bit jarring at times" and that "Dion sounds so strangely subdued on some tracks, you keep waiting for her to really let rip". Either way, he wrote positively that "There is a lightness to "One Heart" that has been missing from much of Dion's previous work, as she leans more toward upbeat dance numbers, easy-listening rock and even borderline country-pop". Entertainment.ie's Andrew Lynch was more negative, writing that "The problem is, Dion's songwriters seem to have been under strict instructions to keep the material as bland as possible. And while her glass-shattering voice is as spectacular as ever, she still doesn't sound as if she believes a word of what she's singing. "One Heart" is certainly one of her better collections - but frankly, that isn't saying very much". "The Guardian"'s Betty Clarke wrote that "Dion proves she can be more than a series of hollow - if album-shifting - sentiments". Darryl Sterdan wrote a very negative review for Jam!, saying that "it's bad enough the 14-song CD is full of unoriginal, instantly forgettable fluff -- leftover Britney bubble-pop from Max Martin, cliche chest-pounding power ballads, a title cut that's a blatant Shania soundalike and a Cher-style Eurodisco revamp of the Roy Orbison hit "I Drove All Night," which she's already turned into a Chrysler jingle".